On his first day as an intern, Dr. Devon Pravesh faces the harsh realities of medical care as third-year resident Dr. Conrad Hawkins takes him under his wing and teaches his unconventional ways for treating patients.
Conrad receives the call he's been waiting for when a heart becomes available for a patient who has been on the transplant list for two years. But when a congressman is admitted to the hospital after a heart attack, he is prioritized and derails Conrad's patient's surgery. Meanwhile, Nic grows suspicious of one of the doctors after a file goes missing, Dr. Bell tries to manipulate Mina and Devon is put to the test when a patient's condition requires a split-second decision.
An old army buddy and fellow surgeon visits Conrad at the hospital. Meanwhile, the team is put to the test when they have to save the life of an uninsured and undocumented patient, while simultaneously battling the hospital's administrators, who fear the patient will cost millions. Also, Dr. Bell experiments with a new medication for his tremor and Nic swears to investigate the mystery surrounding missing medical records.
After a mix-up in the ER causes Conrad to deliver a death notification to the wrong family, he sets out to fix it. Nic struggles to find a patient's records who has been under Lane's care, Devon forms a bond with an elderly patient. Mina is benched after overreaching in the surgical unit.
Three concurrent surgeries at the hospital push its staff to the limits. Determined to ease the pressure, Nic requests Jude for one of the operations, making Conrad jealous. Dr. Lane Hunter sets out to discredit Nic's claims, Devon struggles with a patient who has an embarrassing problem and a charitable contributor comes to the hospital wanting to donate a lot of money to Dr. Lane's oncology program.
As Conrad battles a group of overly aggressive attending physicians on behalf of a patient with a mysterious chronic ailment, he also must face off against his father who has shown up at the hospital unannounced. When Mina goes out of her way to help a young man from her neighborhood who almost mugged her, Nic offers her assistance and discovers a secret that Mina has been keeping behind closed doors. While away from the hospital, Nic enlists the help of Devon to keep an eye on Lily, which leads him to an incredible find that has him questioning Dr. Lane's motives. Also, Renata's plans to poach a renowned surgeon from another hospital hit a standstill when Bell decides he doesn't agree with him.
Conrad goes head-to-head with Lane when he disagrees with her over a treatment plan for a terminal cancer patient. Tensions rise when Jude inserts himself in the middle by offering to perform the invasive procedure Conrad is fighting against. When a VIP patient crosses the line with Nic, she must devise a strategy on how to stand her ground and combat the situation. Meanwhile, Bell realizes he'll need Mina's hands more than ever.
Much to Bell's dismay, Nic and Conrad decide to admit a homeless Jane Doe, whom they suspect was dumped off by another hospital during Chastain's big Charity Ball. Elsewhere in the hospital, Devon and Irving care for a male escort who offers surprisingly good advice, Micah returns for a checkup and falls even harder for Mina, and Devon's parents are in town.
Conrad's ex-fiancé, Catherine, is admitted to the hospital with abdominal pain that proves to be quite the medical mystery. As Conrad doggedly tries to figure out her diagnosis and fights the idea of Bell performing her operation, Nic gets some insight into Conrad's past. Meanwhile, Bell panics when Claire announces that she will be installing cameras in all operating rooms, Devon wracks his brain for the perfect birthday present for Priya and Lane realizes that Nic is suspicious about her clinic.
Conrad is hit by a bike and badly sprains his ankle, but works through it when he takes the case of his old medical professor, who is hallucinating visions of her old patients. Devon is tasked with admitting Conrad, who refuses any sort of treatment. Nic tries to navigate her emotions while mourning the loss of a patient and Bell operates on a foreign dignitary with unforeseen complications. Meanwhile, Lane and Bell's relationship grows closer.
When Nic finds herself under investigation in Lily's death, Conrad comes to her defense, but ends up making the situation worse. During a routine surgery, Bell's patient accidentally catches fire, leaving the hospital to start an immediate investigation into his medical records. However, hospital CEO Claire Thorpe doesn't realize what she's up against when Bell plans a counter attack. Meanwhile, Devon deals with a series of ER patients, including a hypochondriac whom he fears could end up under Lane's care.
Conrad and Devon work tirelessly to save the life of Bradley, a fellow doctor who has fallen through the hospital skylight. As the team contemplates how and why he fell through in the first place, Dr. Bell looks back to when he benched Bradley for falling asleep during surgery. Amidst the madness, Mina is tasked with showing Chastain's new star cardiothoracic surgeon, Dr. AJ Austin, around the hospital, but is caught off-guard by his volatile personality. Meanwhile, Nic finds renewed enthusiasm when she uncovers an oncologist who used to work with Lane, but while paying him a visit, she fears that she's being followed.
Devon and Conrad race against the clock to save the life of a woman who is deteriorating fast from undetermined symptoms. When the patient turns out to be a hero who helps previous criminals get their lives back together, the team relies on her family of ex-cons to help diagnose and treat her. Tensions rise as Nic continues her search for evidence to incriminate Lane, but must simultaneously tend to her sister, Jessie, who is rushed into the ER. Meanwhile, York returns to the hospital with his mother, who is in need of a risky procedure, and comes face-to-face with the stone-cold Dr. AJ Austin.
In a final and drastic attempt to save Nic from Lane's acts of sabotage, Conrad must call in a favor from the one person he promised he never would. Meanwhile, Mina's partnership with The Raptor takes on new colors when Micah is rushed back to Chastain with major heart complications and Dr. Bell's alliance with Lane is put to the ultimate test when one of her patients is readmitted.
A blackout at Chastain Memorial Hospital requires the staff to treat their patients without the help of any technology. Bell orders the staff to stop accepting new patients and transfer those on life support, but when a child in need is rushed to the ER, Conrad and Devon go against the mandate. Meanwhile, Mina and Austin are tasked with performing heart surgery on a premature baby, despite the lack of power, and Nic works tirelessly to organize the staff and patients who stay during the blackout.
Bell grows frustrated when Marshall Winthrop, Conrad's dad and new chairman of the board, requests Conrad's input in his discussions about the hospital's expenses. As Conrad and Nic work to cut costs for their patients in need, Julian Lynn, a sharp and sophisticated medical device rep, meets the staff at Chastain and inserts herself into the ongoing work of the doctors to promote her costly products. Meanwhile, Mina's relationship with Micah struggles in the wake of his healing process, and Devon is tasked with showing the eager new interns around the hospital.
Nic and Conrad contemplate their past when they team up to diagnose a happy husband and wife who are both admitted to the hospital with mysterious symptoms. Bell and Marshall butt heads on a work trip when their cut-throat business tactics don't align. Meanwhile, AJ turns down a request from Bell despite Mina's forewarning, Devon continues to gravitate to medical device rep Julian and the staff gears up for Conrad's three-year anniversary at Chastain.
Chastain is flooded with concert goers when a stampede at a music festival grounds leaves many in need of doctors. As Conrad and Nic race to help Josh Robinson, a professional adventure guide with a long list of prior injuries, Devon works with a musician who swears he is sober, even though his toxicology report suggests otherwise. Meanwhile, Bell stirs the pot when the hospital's revered orthopedic surgeon, Dr. Kit Voss, demands a better resident, Julian works to get her boss on Bell's good side and Winthrop continues to push Conrad to believe he's a changed man.
When Bell makes the executive call to utilize Julian Booth's medical devices, rather than the hospital's usual products, Kit and AJ must stop their momentary feuding in order to team up against him. Elsewhere in the hospital, Conrad and Nic work to make a child's dreams come true after finding out his cancer has returned and the rest of the staff takes notice of Julian and Devon's new friendship.
Halloween at Chastain proves to be just as spooky as ever when Conrad is tasked with diagnosing a young woman admitted to the hospital with extreme night terrors. Meanwhile, Devon faces his first Halloween in the ER, Nic panics over her decision to bring her newly sober sister to Mina's epic annual Halloween party and Bell finds an interesting way to make use of his new assistant.
When patients from the hospital's prescription drug trial start suffering life threatening side effects, Nic fears that her sister Jessie may be in danger. As a result, she and Conrad work to convince Bell that these trials are not worth the risk. Meanwhile, Mina, Austin and Kit must set aside their competitive nature and work together on a patient whose health is quickly deteriorating and Devon uses Julian as the beta tester for a product he's designed.
Conrad goes head-to-head with Bell after he recommends one of Julian's risky medical devices to Zoey, who's already lost one son and is back in the hospital with the other. Nic fears that Conrad may be getting overly attached to his patient. Meanwhile, Mina and Austin grow closer while working on a difficult heart transplant, Devon embarks on a very difficult day and Dr. Lane Hunter returns.
Devon's doubts about his relationship reach a peak as his friends and family gather for his big wedding day. As Chastain's leading medical device company, Quovadis, continues to succeed, Julian makes a discovery that leaves her uneasy about her involvement in it all. Meanwhile, Conrad continues to work on his relationship with Marshall and Bell takes a risky offer in order to make a mistake from his past disappear.
Lane Hunter's victims and their families become outraged when she is released from prison. Bell, although responsible for posting Lane's bail and getting her released, continues to be tortured by her manipulation. Meanwhile, Conrad uses work to cope with the news about his father, and he teams up with Mina, Kit and the Raptor to treat a patient who is suffering as a result of Lane's dangerous treatments. Then, Devon grows worried when he doesn't hear from Julian, and Nic sets her sights on a primary physician for their new clinic.
When a medical device fails on a former Chastain employee, an investigation is opened up, which pits Dr. AJ Austin against Quovadis. As Mina and Bell work to get to the bottom of what went wrong, Devon distracts himself with another patient who's experiencing mysterious stomach pains. Meanwhile, Nic forms a bond with her new partner at the clinic and Conrad's relationship with the Barnett family and continues to grow
When a nasty flu season turns out to be masking a terribly infectious disease, Chastain must race to quarantine and diagnose infected patients. Mina finds herself testing Quovadis medical devices in an effort to defend Dr. Austin, who, feeling responsible for the death of a patient, is serving penance by staying away from the OR. Conrad is prepared to take the next step with Nic, but finds that she may not be as ready.
Conrad, Kit, Mina and the Raptor work to save the life of a med student in need of a triple-organ transplant, drawing Bell back to the OR for one of the Chastain's riskiest surgeries yet. After the police find Julian's empty car in a nearby lake, Devon does some investigating of his own to find out what might have happened. Meanwhile, Mina and the Raptor hound Bell to halt his business with the risky medical device company, Quovadis, and Nic makes a rash decision regarding her sister.
When Conrad's attempt to surprise Nic with a lavish Valentine's Day dinner is foiled, he gives the reservation away to someone who could really use it. Mina and Devon distract themselves from all Valentine's celebrations by trying to figure out how their seemingly healthy neighbor has suddenly passed away. Meanwhile, Kit gives dating advice to a sex-injured patient, Irving hits a crossroads in his not-so-secret relationship with Nurse Jessica, and Bell decides to celebrate the day in the OR.
Bell's confidence in Quovadis continues to waver when the poster child for one of its medical devices, Henry Barnett, is rushed back into the ER, experiencing seizure-like symptoms. Meanwhile, Mina's past comes to light when her mother, famous Nigerian surgeon Dr. Okeke, pays a visit to Chastain, and Conrad makes a risky move when Henry returns to the hospital.
The surgeons are determined to shut down Quovadis after Henry Barnett almost loses his life due to a device malfunction. As Mina and Devon set out to find the truth, Bell, AJ and Conrad work to save the life of Chastain's favorite custodian, Simon. Meanwhile, one of Alec's old patients ends up in the ER, forcing him to question if he made the right choice to leave his old practice for Nic's clinic.
The surgeons work together to save the life of the Raptor's old mentor, Abe, who is their only inside source to Quovadis. Unfortunately, when Nic and Conrad take on a patient needing the hospital's only viable ECMO machine, they must decide between saving the life of Abe or saving the life of their younger, more stable patient. Meanwhile, Marshall puts himself in serious danger to help take down Gordon Page once and for.
Chastain picks up the pieces after the fall out with the corrupt medical device company Quovadis, leaving Marshall ready to charter new territory in the medical field, and Devon to finally discover the truth about what happened to Julian Booth. As Conrad and Alec team up to help a young gymnast experiencing mysterious symptoms, Nic focuses on her sister, who's back with their estranged father, Kyle, in tow. Meanwhile, Bell rushes to Kit's aid when her ex-husband comes to the ER needing emergency surgery.
When Atlanta is struck by a severe snowstorm, Mina must perform a big surgery - without the help of The Raptor - to save the life of a young father, while Kit and Bell get stuck babysitting the man's children. Nic and Conrad experience a disagreement with a patient's treatment, causing further strain in their relationship. Meanwhile, Devon teaches an important lesson about life and death to a first-year med student.
Devon grows concerned when a mother's complaints go unaddressed after her delivery, and pushes Bell to take drastic measures. Conrad is faced with breaking the news to Nic regarding Jessie's worsening condition. Meanwhile, The Raptor, Mina and Kit spring into action when a mother and son enter the ER with devastating injuries.
When the hospital has a severe blood shortage, Conrad must try every avenue to save a patient's life. Nic receives devastating news and is left worrying about her sister's health, while Mina and Devon work with a new anesthesiologist who is not what she seems. Elsewhere, Kit considers the future of her intertwining relationships and Bell has an encounter with a woman from his past.
When a lottery winner is admitted to the hospital, Bell turns to him as a potential solution to Chastain's financial problems. Nic becomes infuriated when Alec suggests she meet with an organ broker in hopes of saving Jessie's life, but after her other ideas fail, she brings the idea to Conrad. Meanwhile, Devon and Irving help Mina piece together details from her night out after The Raptor sidelines her for an upcoming surgery.
In an effort to save Chastain, Bell considers selling the hospital to a conglomerate, but Kit tries to make him see that the negatives will outweigh the positives. With Conrad's help, Nic tracks down Kyle and pleads for him to reconsider donating a kidney to Jessie. Meanwhile, Mina voices her concern to Austin when Shira is assigned to Micah's surgery and Devon fights for the care of a patient whom the doctors suspect is uninsured.
The doctors of Chastain are surrounded by new rules and doctors, as Red Rock Mountain Medical takes over the hospital. Conrad finds himself in a dangerous situation when the construction for a new neurosurgery center causes a gas explosion at Chastain. New hotshot neurosurgeon, Barrett Cain, is put to the test with a complicated surgery. Mina acts as a support for Nic, who is struggling with a devastating loss.
Cain tries to recruit Bell and Kit to join him on a dangerous surgery, with the intent of garnering publicity for the hospital. The Raptor finds himself with an emotional attachment to a patient whose life is put in his hands. A friend of Mina arrives at the hospital with shocking news. Devon rotates out of the ER. Nic plans a surprise for Conrad.
When a police officer shows up to the ER with an injured criminal that he caught in the act, it's up to the Chastain staff to keep him alive in order to save an innocent life. Nic gets roped into a surgical rotation with Cain that leaves her questioning the way he operates, and Conrad makes a shocking discovery about the hospital. Meanwhile, Bell pursues a new fiscal venture that may bring him into a whole new market.
When Devon’s patient, who was pronounced dead, suddenly revives, Conrad is left doubting Devon’s judgement and wondering what happened. A well-known white supremacist falls under the care of Cain and Nic, causing the two to butt heads on how to move forward. Meanwhile, on their way to a medical convention, The Raptor and Mina get stuck in a strange town, where they uncover new information about Red Rock Medical.
After a plane crashes in Atlanta, Devon is overcome by guilt at the thought that he could have prevented the tragedy. Bell, who was a passenger on the plane, makes it his personal mission to save the life of the man seated next to him. Meanwhile, Adaku returns to ask Mina a big favor, the Raptor struggles with telling his parents about meeting his biological father, and Conrad and Nic consider risking it all to investigate a drug that might be linked to Jessie’s death.
On National Nurses’ Day, Chastain’s nurses are severely understaffed and overworked, leaving them all feeling exhausted and under-appreciated. Cain performs a dangerous surgery on a new patient he won in a game of poker. Conrad discovers that his father has been administered the same drug that he fears played a role in Jessie’s death. The Raptor comes face-to-face with his birth mother for the first time. Irving attempts to take the next step in his relationship with Jessica.
When one of Chastain's own is brought into the emergency room with life-threatening injuries, the staff rallies around each other to try to save her life, while disagreements over how to best handle her care put Cain at odds with the rest of the doctors. Bell is met with an unexpected response when he voices concerns regarding the nursing shortage that Nic brought to his attention. Conrad turns heads when he shares data about Hemopleatin. Kyle begins volunteering at the hospital.
Upon dubbing Thanksgiving 'the most dangerous day of the year', Devon and Irving are inundated with patients in the ER. When an A-list celebrity enters the hospital after swallowing a wish bone, Logan Kim assigns a new surgeon to the case in the hopes of garnering extra publicity. Tensions run high at the Raptor home when he hosts his biological and adoptive families for a Thanksgiving dinner. Kyle interrupts Nic and Conrad’s low-key plans.
Conrad comes under fire when a former patient files a malpractice lawsuit against him, putting Bell in a difficult position with Red Rock. When Devon discovers that his VIP patient has a life-threatening brain condition, the doctors ban together to perform a risky surgery. Mina discovers that Adaku has a dangerous heart condition that puts her and the baby at risk. Kyle forms a personal relationship with a patient.
On Devon's last day as an intern, he and Conrad are faced with a moral dilemma over a suicidal patient who is in need of a liver transplant. When Bell discovers that Cain is keeping braindead patients alive in order to boost his survival rates and add to Red Rock's profits, he decides to take matters into his own hands. Adaku goes into early labor, causing a strain on her heart, and Mina has doubts over how to best handle her care.
After being terminated from Chastain, Conrad has difficulty figuring out his next step and distracts himself by accompanying a patient on a zero-gravity adventure. In his first move as the new Chief of Surgery, Cain puts the doctors on a commission-based pay system. Mina struggles with taking care of Adaku's baby. Bell's supplement company get its big break.
While working at their non-profit clinic, Nic and Mina treat a patient with a failing heart VAD, forcing them to find a new battery in time to save her life. Conrad gets a call from a previous patent in crisis after being sued by Red Rock for medical expenses he can't afford. Devon's VIP patient returns to the ER and Cain tries to get close to Bell's business partner from the supplement company.
After meeting with a high-profile soccer player suffering from mysterious symptoms, Conrad ends up back at Chastain and faces an angry Logan. Bell and the Raptor come up empty-handed in regard to a diagnosis. Nic springs into action when she notices Kyle falling into a deep depressionl. Devon butts heads with Irving over patient space. Mina realizes she has become attached to baby Michelle.
Cain feels disrespected by Logan when he is left out of a major decision regarding Conrad. The doctors work to save the lives of two big Red Rock donors who were involved in a jet skiing accident. Irving and Devon realize that three of their patients—each with different symptoms—could be triggered by the same thing. Bell's supplement company proves to be more lucrative than anyone anticipated, but an unexpected snag could put it in jeopardy.
When Red Rock finally opens the doors to its new neurosurgery center and Nic is forced to work alongside Cain again, she, along with the rest of the staff, discover that the center is not everything that was promised. Mina and The Raptor work together with a new surgeon on a heart transplant that has an unexpected result. After becoming personally involved, Bell asks Conrad to re-examine the three patients who may have been poisoned.
When Nadine's father comes to town for her birthday, Devon enlists the help of the whole staff to ensure that he makes the best first impression. Red Rock decides to cut the entire OBGYN department and Logan Kim leaves Conrad with the difficult task of letting the residents go. Nic cares for a teenage patient whose condition is deteriorating.
A renowned pediatric surgeon is called over to Chastain for an extremely difficult surgery on a newborn, but when she arrives, The Raptor and Devon realize she is not fit for surgery. A Dolly Parton drag queen is admitted to the ER after collapsing on stage, leading Bell and Ezra to a potentially life-saving discovery. Nic and Conrad suspect their patient may be the victim of sex trafficking. Nadine delivers some surprising news to Devon.
Conrad finds himself caught between his duties as a doctor and his loyalty to Kit, when he discovers that her son-in-law may be suffering from a serious disease. While moonlighting at a long-term care facility, Devon and Nic make a shocking discovery about a former patient who fell victim to Cain's manipulative practices. After jumping into a new opportunity as a TV doctor, Bell is left without any surgeries and The Raptor brings him in to help on an important case.
When Cain becomes aware of an emergency situation breaking out at the hospital, he recruits Ezra to help keep it under wraps. Nic works to come up with a support system for a patient in need of a lung transplant. Kit's son-in-law's condition continues to worsen.
Just when Derek's condition seems to be improving, a severe complication arises, causing Kit to fear that he may be the latest victim of Cain's cover-up. When Cain's former girlfriend is admitted to the hospital for surgery, the doctors finally get a glimpse into his personal life. Meanwhile, Conrad fills in Marshall on the emergency situation facing the hospital and Mina and The Raptor work on saving the heart of a salsa dancer.
After a long wait, Conrad and Nic prepare for their wedding day with the support of their family and friends. Flashbacks to the early days of the COVID-19 crisis shine a light on the heroism of the doctors and the toll the virus took on everyone at Chastain Memorial.
When Cain's elective surgery patient returns with complications, Mina and Raptor butt heads over how to handle the situation. Conrad and Devon treat a local Congresswoman who withholds information that could prevent her from receiving proper treatment, causing Devon to open up about his grief. In the wake of losing many colleagues to the virus, Bell worries who would be there for him in a moment of crisis and finds himself mining his own past to find his estranged former stepson. Logan Kim finds himself on the chopping block when the doctors are questioned about his actions during the pandemic.
When Cain tries to be a hero at a crash scene, he is struck by a car, causing Chastain's doctors to put aside their personal issues to try and save his life. Conrad and Nic team up to help one of the crash victims, whose secretive past makes it difficult to identify a diagnosis. Bell brings his TV crew to the hospital in hopes of garnering positive attention for Chastain. Mina opens up to Nic, only to find out that Nic is holding on to a secret of her own.
The Chastain staff works together to diagnose a mother-daughter pair who both come in with symptoms that make it difficult to determine their conditions. Devon deals with an unexpected visit from his mother and Conrad and Nic try to figure out the best time to tell everyone their big news. Bell deals with an over-eager fan of his show who ends up needing treatment at Chastain. Mina makes a bold move when she realizes her visa is about to expire.
With Chastain on the verge of shutting down due to the sale by Red Rock, Conrad tries a last-ditch effort to save the hospital and the doctors plan for their next career moves. On their last day, the whole staff must work together to save Nic's life after she is injured by a deranged patient.
As Nic struggles with her recovery, a close friend and former Chastain colleague returns to the hospital to support her. As the hospital transitions from private to public, the search begins for a new CEO, Bell asks a favor of his step-son. Devon sees an opportunity to fix the system.
When Conrad gets a call from his former army commander who is stranded and wounded in the forest, the trip to save him brings lots of old emotions to the surface. Devon and Kit treat a patient who suffers from sickle cell anaemia and encourage her to have a hip replacement to help treat her pain. When The Raptor is pulled away in the middle of an intense surgery, Mina is left to put her skills and finish the surgery on her own. Bell works on reconnecting with his stepson after helping him get hired at the hospital.
On Nic's first day back at Chastain, the man who attacked her is admitted to the ER, causing her to confront her trauma head-on. Cain, now in recovery, is self-conscious of his physical state and sets his eye on taking down Mina. The new intern both struggles and shines throughout her first day, causing Devon and Conrad to wonder if something bigger is going on.
A case becomes personal for the staff when Conrad and Bell treat a pregnant woman who is carrying Jake's future adopted child. Upon hearing surprising news from Princess Nadine, Devon contemplates the future of his love life. On the heels of meeting The Raptor's parents, Mina gets a call that causes her to make a bold decision about her future. Cain grows closer to Rose. Irving and Jessica tie the knot.
Just when Mina and The Raptor can see their future together, an unexpected complication throws a wrench in their plans. Cain faces a harsh reality when Kit gives him the opportunity to prove he is ready to return to the OR. Devon presents Rose with a groundbreaking clinical trial that could help her battle with Sickle Cell Anaemia.
When a tornado touches down in Atlanta with Chastain directly in its path, the entire staff goes into crisis mode. Conrad and Nic work on an injured EMT. Devon and Leela become trapped with a man who has severe head trauma.
With Nic's due date steadily approaching, she and Conrad plan a relaxing day off, but their plans are interrupted when a patient with a medical mystery sends them rushing back to Chastain. Devon stays by Rose's side as she starts her clinical trial and things take a turn for the worse. Kit is under pressure to bring Chastain out of debt.
On the day of Nic's baby shower, Billie takes full control to make sure it goes smoothly, but a secret she's been hiding changes everything. Devon and Leela stumble upon an apartment fire, where they assist in getting victims safely to Chastain and Leela gets a chance to prove her skills to Raptor. Jake and his husband deal with the complications of Sammie's health. Raptor and Rose receive exciting news.
The wait is over as Conrad and Nic welcome the arrival of their baby girl. Raptor's life begins to fall apart and he is forced to turn to Cain for help. Devon and Bell work together on a complicated surgery that may allow them to save multiple lives. Kit tries to deal with the moral repercussions of financially saving Chastain.
An attack by cyber criminals sends the Chastain ER into a tailspin and Kit tries to figure out whether or not to pay the ransom. The Raptor deals with a personal connection to the patients brought into the ER during the attack, leaving them all vulnerable. Conrad works on balancing life as a new dad. Devon and Leela debate taking the next step in their relationship.
When one of the doctors is found unconscious in an elevator at Chastain, the staff frantically retraces his steps to figure out the cause. Billie is faced with a personal conflict when she comes face-to-face with the secret she has been hiding all these years. Bell helps Kit make a decision about a new neurosurgeon joining the team at Chastain.
When an accident brings a familiar patient into the Chastain ER, the doctors must face the reality of figuring out how to proceed with the best care, which leads the whole staff questioning every decision. The Raptor and Leela deal with a patient returning with the long-term effects of CoVID.
In trying to find a way to channel his emotions, Conrad puts all his effort in looking for answers. Raptor has a run-in with the police that ends up taking a surprising turn. Leela begins noticing problems with a surgeon who has been Bell’s mentor.
While looking for a distraction on Halloween, Conrad treats a group of witches who send the ER into chaos. Devon treats a patient who thinks he is being haunted by ghosts. On his way back from vacation, Bell picks up a hitchhiker who is not what he seems to be.
Conrad brings a patient into the hospital who causes a high security crisis. An MMA brawl sends a well-known fighter to Chastain and all hands are on deck. Bell and Raptor vie for the same position at the hospital. Leela gets a visit from her sister.
A new group of interns start their first day with Devon at Chastain. Kit and Bell try to convince Conrad to come back to Chastain. The Raptor's mother ends up back in the ER. Leela and Padma deal with an unexpected visit from their parents.
Kit hires a surgical coach to watch over Bell and Raptor and help them brush up on their skills. Upon receiving attention from multiple women at the hospital, Conrad contemplates jumping back into the dating scene. Devon works with an elderly couple.
Conrad takes Trevor under his wing to care for a patient whose good luck seems to have run out. Leela struggles when given the decision to take full responsibility of her indecisive patient's life. The Raptor continues to try to figure out a care plan for his mother. Both Devon and Kit are stretched far too thin trying to balance everything on their plates.
When the first day of Kit's experimental Flight Go team program sends Conrad out into the field, he builds a new relationship with a fellow doctor along for the ride. Devon works with Trevor for the first time on a patient with a mysterious fever. Bell is hiding a secret from the whole staff and they are starting to become suspicious.
A case turns personal for Conrad when the donor recipient of Nic's heart is admitted to the ER. Bell is faced with a devastating diagnosis that causes him to make a heartbreaking decision. Meanwhile, the Raptor asks Devon to include his ailing mother in his clinical trial, causing Devon to face a major dilemma.
When a lost child is brought into the ER with physical signs of abuse, Conrad and Cade try to get to the bottom of what happened to her. While out shopping, Devon and Leela encounter a woman who is having trouble breathing, and when she arrives at the hospital, Devon takes it upon himself to make sure she feels comfortable with the staff. Meanwhile, Bell eyes an open seat on the State Medical Board and Billie decides it's time to confront her past.
A tragic accident occurs at Jessica’s sister’s gender reveal party, putting her brother-in-law’s life in jeopardy. Meanwhile, Conrad, Irving & Trevor work on an influencer whose life was put in danger by a risky cosmetic surgery. Then, Bell is cleared for his first surgery back and Billie is forced to face her past head-on.
When things from Billie's past begin to come to light, she is the subject of whispers and stares around the hospital and the team struggles to find the best way to support her. With the nurse shortage in full swing, a simple cleaning job turns into a horrific disaster that calls for all hands on deck. Meanwhile, Trevor discovers a shocking secret and Padma has a proposal for Leela.
As his clinical begins, Devon treats his first patient with a revolutionary medical fluid that doesn't go as planned. Meanwhile, an overdosed John Doe is rushed to Chastain, leading Conrad straight into a much bigger scandal than he expected. Then, a shocking secret regarding Cade's past is discovered.
Conrad and The Raptor help out an old friend whose heart problems reveal a bigger issue than they anticipated. Meanwhile, Devon treats a suicidal woman whom he thinks might be a good candidate for Deep Brain Stimulation. Then, Bell confronts the Medical Board about the cases he's been investigating, and Billie and Trevor have an emotional reunion.
Conrad treats one of Gigi's fellow classmates, whose stomachache turns into something much more serious. Meanwhile, Devon takes several interns to a senior living facility, where they meet a former doctor whose wife falls ill during their visit. Then, in looking for a sperm donor for Padma, Leela uncovers some unsettling news about the business.
When Conrad confronts a pharmacy owner about fraudulent prescriptions being filled under his name, the situation takes a dangerous turn. Then, the ER is sent into chaos when a street racing accident results in multiple severe injuries. Meanwhile, Raptor faces a devastating reality when his mother’s condition worsens.
With Raptor on leave to take care of his mother, the hospital scrambles to stay organized without him. Meanwhile, a camping trip leaves a patient with a fatal disease that none of the doctors have seen before. Then, Bell and Kit devise a plan to help their case with the Medical Board.
Conrad and Cade work with a Medicare patient who sheds some light on the inner workings of the prescription fraud situation. Meanwhile, Leela works herself to the brink of exhaustion to avoid having a conversation with Devon and eventually makes mistakes on her cases. Then, the Raptor and Padma try to compromise on how to move forward and Kit and Bell make a big decision about their future.
When one of the doctors is shot outside the hospital, the ER is put into lockdown and the team races to save one of their own. Elsewhere, Devon and The Raptor work with a patient who learns he is unable to receive a lung transplant, due to his vaccination status. Meanwhile, Devon and Leela try to juggle the new dynamics of their relationship and Cade's father arrives at Chastain.
When a young boy comes into the hospital with a rare disease which leaves his bones incredibly fragile, Cade's father, Ian, scrubs in to assist in the surgery, leaving Cade all on her own in her recovery. With his clinical trial officially being declared a success, Devon has some huge decisions to make about the future of his career. Meanwhile, Billie struggles with some new feelings.
Conrad contemplates his future as he reminisces about a special night that included a very important conversation with Nic. Meanwhile, Devon is presented with an amazing career opportunity out of state, and Ian is faced with a devastating diagnosis, which causes him to rely on the doctors at Chastain. Then, Kit and Bell celebrate their engagement and Padma receives the news she has been waiting for.
When Padma's pregnancy takes a dangerous turn, the doctors come together to find a solution and turn to Ian to perform a miracle. Meanwhile, Conrad makes a decision regarding his love life and Devon leads his own clinical trials at Chastain.
The high stakes governor election results in violence at the polls, causing multiple victims to arrive at Chastain. Conrad finds common ground with an aggressive patient, helping lead to a diagnosis for his outbursts. Meanwhile, when another patient’s lung collapses, the doctors find a serious root of the issue.
When a gunshot victim comes into the ER, his injuries prove to be so catastrophic throughout his body that multiple doctors need to jump on the case. Meanwhile, Ian is faced with a mandatory drug test and Padma prepares for her C-section.
Ian is faced with performing a surgery on a Jane Doe NICU patient while he continues to struggle with his personal issues. Meanwhile, Conrad asks Devon to cover his shift so he can spend a day at home with an anxious Gigi.
A college professor comes into the ER and Conrad realizes it’s a former patient of his from when he was an intern. Meanwhile, Devon ends up admitting a man – who swears by an anti-aging regimen that he thinks is the answer to eternal life – into the hospital after he collapses.
On the day of Kit and Bell's wedding, Bell and Conrad get pulled away to tend to the ill daughter of a major hospital donor. Meanwhile, Billie takes Gigi and Sammie dress shopping.
When a prison doctor believes a death row inmate is lying about his symptoms, Conrad and Raptor are called in to examine him. Meanwhile, Devon sees a traveling British couple who are nervous about the cost of American healthcare, and Kit and Bell meet with the Georgia Governor.
After a teenage boy is taken into Chastain for falling unconscious from a suspicious pill, Conrad takes action to find the boy's brother before he meets the same fate. Meanwhile, Dr. Bell deals with being served court papers from a former patient.
Devon is approached by a documentary producer as he prepares to perform the first titanium rib cage implant surgery in the country with Raptor, who must scramble to find a babysitter before the procedure. Meanwhile, Conrad tends to an unhelpful patient who claims to have been mauled by a large cat, and Dr. Bell faces negative press.
Conrad comes face to face with Nic's dad, Kyle, after 5 years of no contact when he comes into Chastain with an extremely low heart rate. Billie advises her patient against surgery, but the patient's family ignores her recommendation. Meanwhile, Cade musters up the courage to confront Ian about his addiction and Leela grows concerned about Padma.
A famous cardiothoracic surgeon - who happens to be Dr. Yamada's mentor - comes into Chastain after experiencing heart pain. Meanwhile, Kit breaks the news that the ER will no longer be accepting trauma patients due to budget cuts, and Devon and Conrad help treat a confused woman.
The ER quickly fills up after a heavy storm causes a devastating helicopter crash. Conrad, Devon and the rest of the Chastain doctors rush to treat patients including the helicopter pilot, a barista, and Chastian's least favorite person, Governor Mark Betz.
Conrad is pulled away from celebrating Gigi's 6th birthday when Sammie comes into Chastian with a 104-degree fever, and Kit must call in a favor for treatment. Meanwhile, a heart arrives for Governor Betz's transplant surgery.
