Fresh out of the FBI Academy, Simone Clark arrives in Los Angeles and has her sights set on joining Matthew Garza’s newly formed special unit as they investigate the murder of a federal engineer. Garza’s squad includes Carter Hope, a promotion-hungry traditionalist, Laura Stenson, a talented agent in desperate need of a second chance, and Brendon Acres, a former actor who graduated from Quantico with Simone. On the home front, Simone and Cutty’s father-daughter relationship is put to the test as their opposing opinions about law enforcement come to a head.
Simone utilizes her informant to track down an arms dealer on the FBI’s Most Wanted list; and Brendon, against Laura’s advice, investigates a risky lead on a congressman. When Carter and Brendon each find themselves at a crossroads, they begin to question their futures on the team and their loyalty is tested. Cutty and Simone struggle to see eye-to-eye on how they are helping the community, while Tim and Laura find common ground with their similar no-nonsense approach to training rookies.
When the team splits up to question a suspect’s father, Simone and Laura discover critical information on how their abusive relationship is connected to the crimes. Following this lead, the team heads to Tucson to save the suspect’s newest target. Meanwhile, sparks fly with Laura and her former colleague, Mark Atlas, as they debate the killer’s motive.
When Simone and Carter go undercover to find an international assassin known as The Reaper, a prisoner seeking bail recognizes Carter and nearly blows his cover. Laura and Brendon trace a lead on The Reaper’s assault rifle while Brendon works to heal his relationship with his father. Meanwhile, Simone’s demanding work schedule puts a strain on her relationship with Dina.
After a father and daughter are kidnapped on Thanksgiving, the team discovers a hostage situation involving police deputies. When the gunmen offer an exchange for the hostages, Simone is sent undercover by Garza, and Lopez arrives to help rescue Wesley. Meanwhile, Laura and Brendon search for a nanny cam that could reveal the identity of the kidnapper.
A mysterious caller threatens to reveal a leaked list of undercover FBI agents if a prisoner is not released. After an exposed agent is mortally wounded, the team identifies the caller and heads to the Port of Los Angeles to secure the release of the prisoner. Later, Simone enlists John Nolan to help her remodel Cutty’s garage into a living space; and Brendon, ready to confess his feelings to Antoinette, discovers she has feelings for someone else.
After a failed assassination attempt involving a bomber, Congressman Damien Roberts hires Garza’s team for protective detail while Brendon and Laura begin investigating potential suspects. Later, Damien and Simone rekindle their romantic relationship, and Brendon advances his relationship with Antoinette.
During a recent murder investigation of an investment banker, who was also declared murdered six years ago, the unit follows a suspicious trail that leads to new evidence on both cases. Meanwhile, relationships are put to the test as Fortune considers her future with Carter, and Brendon pushes his limits with Antoinette.