Andi's world turns upside down when her older sister, Bex, returns home on her 13th birthday and reveals a family secret. Digitally released on March 10th 2017 ahead of the network premiere.
Andi's family life is thrown for a loop when her big sister, the freewheeling Bex, returns home on the eve of her 13th birthday. It begins with Bex arranging for Andi to train for Ultimate Frisbee with the cutest guy at school, Jonah Beck, who she learns has a high school age girlfriend, Amber. Andi also grapples with telling her best friends Buffy and Cyrus some big news, but is preoccupied making Jonah Beck a bracelet, at his request. Meanwhile, Cyrus becomes the Space Otters' official Enthusiastic Supporter and helps them win their first game. Digitally released on March 10th 2017 ahead of the network premiere.
Against Celia's wishes, Bex convinces Andi to stay up late to watch a scary movie; and when Andi falls asleep in class the next day, she receives detention and then misses the Space Otters game. Meanwhile, Buffy joins the track team and is determined to win. Digitally released on April 7th 2017 ahead of the network premiere.
Ham takes Celia on a weekend getaway, so Bex emboldens Andi to host her first-ever dance party at the house - and then Amber shows up, dampening Andi's big night. Buffy meets Marty, a guy from the school track team.
Ham works to convince Bex to contact Bowie and tell him the truth; Andi's frustration boils over when she discovers that Buffy has secretly been confiding in Bex instead of her. Meanwhile, Cyrus double-dates with Jonah Beck, Amber and her friend Iris.
Buffy and Cyrus convince Andi to tell Jonah the truth about Amber, but it leads to Andi feeling humiliated. Bex lets Andi stay home from school and they get an unexpected visitor.
Andi gets invited to go on a fun adventure, but overprotective Celia makes her go to school; Andi's glad she did because she finds out something important about Jonah and Amber.
Andi catches someone snooping through her laptop making her yearn for some time to herself. Meanwhile, Cyrus is challenged by a text from Jonah Beck and enlists Buffy's help.
When Jonah asks Andi for help picking out a birthday gift for his girlfriend, Amber, Andi enlists the help of Bex.
Andi and Bex struggle to get comfortable with their new living arrangement; Cyrus thinks Iris has dumped him so he enlists Buffy to fill in as his date.
Bex encourages Andi to stand up for herself and challenge an unreasonable new dress code, so Andi, Buffy and Cyrus practice their newfound empowerment and start a protest.
Amber fails to defend Jonah Beck when her friends mock his Space Otters team, causing Jonah to turn to Andi. Meanwhile, Andi is convinced Bex and Bowie are destined to be together.
Andi encourages Bowie to plan a future with Bex; Cyrus introduces his girlfriend, Iris, to Andi and Buffy; Jonah invites Andi to the Space Otters' party.
Andi invites Jonah to her Chinese New Year celebration, which gets awkward when Celia’s sister Aunt Mei visits. Buffy signs up for the boys’ basketball team tryouts.
Andi tries to convince her friends to find a new hangout spot to avoid Amber at The Spoon. Buffy tries out for the boys’ basketball team.
Andi learns more about her past on the anniversary of the day Bex left home. Jonah attempts to teach Cyrus how to skateboard.
Andi invites Amber over for a sleepover. Buffy is frustrated when the basketball team captain TJ excludes her from gameplay.
Andi takes a stand when students are divided into two groups, and one group receives preferential treatment; Andi also learns AndiShack is in jeopardy.
Andi and Jonah go on a double date with Buffy and Marty to an arcade. Meanwhile, Cyrus decides to shoot a movie with Bex’s encouragement.
When Andi and Celia spend more time together, Bex feels jealous. Buffy agrees to tutor TJ if he agrees to pass her the ball on the court.
Andi questions her relationship with Jonah. After a discouraging talk with Amber, Andi enlists Buffy and Cyrus to investigate.
Andi and Bex turn Bowie’s birthday blues around when they plan a surprise party for him. Jonah joins Andi, Cyrus and Buffy on their annual trip to the Renaissance Faire.
Andi and Bex discover that Bowie may be seeing someone and Andi asks to meet her. Cyrus is tapped to make a video for the school, but realizes he may be better behind the camera.
Andi is left confused when Jonah stops wearing the bracelet and tells her he doesn’t like labels. At her basketball game, Buffy finally gets what she has been hoping for.
After much preparation and planning, Cyrus’ Bar Mitzvah festivities commence. Andi and her friends and family all join him in the celebration, which is full of landmark events for more than just Cyrus.
Jonah tries to express his feelings for Andi through gifts, which proves not to be his forte. Buffy reveals she has to move and Andi devises a plan for her to stay.
Andi, Buffy and Cyrus try to make the most of their time together by attempting to recreate their “perfect day.” Bowie teaches Jonah how to play the guitar.
When the power goes out in Shadyside, a day of fun and games shed light on unexpected revelations.
Andi and Walker realize how much they have in common when they spend the day together. Buffy steps up to lead the team in T.J.’s place when he is sidelined.
A special craft project goes missing when Andi agrees to let Miranda’s daughter spend the day at AndiShack. Jonah confides in Buffy and Cyrus.
Jonah finds a way to tell Andi how much he truly likes being around her. Meanwhile, Walker continues to make a positive impression on Andi and her friends.
Andi, Cyrus and Jonah put together a farewell gift for Buffy before her last day in Shadyside.
Andi and Cyrus miss Buffy and can’t reach her after her move. Andi receives a handmade gift from Walker that upsets Jonah.
Ham reveals surprising news to Andi and Bex. Jonah tries out for a regional league Ultimate team.
Andi runs into Walker at an art fair, and he meets Jonah for the first time. Bowie's relationship with Miranda hits a snag.
Andi and Jonah go on their first date where she learns some sad news. Bex and Celia prepare for the grand opening of their business.
Andi and Bex plan a special dinner for Bowie.
Andi anxiously awaits Jonah’s return from summer camp; Andi is surprised to learn who Buffy likes; Bex gives Celia a makeover.
Andi and her friends and family gather to celebrate the Harvest Moon Festival, but Jonah’s mishap may spoil the evening; Celia attempts to one-up her sister, Mei, by announcing a special event; Andi and Jonah have a heart-to-heart talk about their relationship.
Andi's plans for a group outing with Buffy, Cyrus and Jonah are interrupted by Walker; Bowie's new guitar student proves to be a challenge; Cyrus seeks an alternative to P.E. and ends up in a dance class.
Andi is embarrassed when Jonah performs a song about her; Bowie decides to renovate Bex and Andi’s apartment to make it big enough for their whole family to live in; Buffy conducts her first girls’ basketball team tryouts.
Feeling left out by her friends, Andi spends time with Amber; Andi and Celia pick out Bex's wedding cake; Bowie helps a guitar student break some bad news.
Andi, Bowie and Bex are surprised by an impromptu visit by Bowie's mother; while hanging out with T.J.'s friends, Cyrus faces a dangerous situation; Buffy and Jonah learn a secret about their school principal.
Andi befriends Jonah's new girlfriend; Buffy is elated when a talented player joins the girls' basketball team; Cyrus continues to avoid T.J.
Andi gets in over her head when she attends a high school party with Amber causing Bowie’s plans for a romantic outing with Bex to go awry. Cyrus tries to mend a longtime rift between Jonah and T.J.
Invitations from a secret society at school cause tension between Andi and her friends; Bex and Celia search for the perfect wedding dress.
Andi lends a hand when Buffy’s coaching skills are tested at the school’s first girls’ basketball game; Amber helps Cyrus create a dance routine; Libby is disappointed that Jonah hasn’t learned sign language.
Andi, Buffy and Jonah support Cyrus as he sits Shiva for his grandmother but Bowie’s homemade kugel dish is a shanda.
Andi, Buffy and Cyrus worry about Jonah’s unusual behavior; Miranda tries to cause problems for Bowie and Bex.
Andi attempts to enlist her friends in an epic group costume; Amber continues to vie for Jonah’s attention; Bex makes a confession to Andi.
Andi releases her frustrations about Bex and Bowie’s canceled wedding; Cyrus invites Jonah to a backyard campout; Buffy competes in a marathon with Marty.
Andi, Buffy, Jonah and Cyrus take a stand against a wasteful clothing company; Cyrus is disappointed by T.J.’s new friendship; Celia refuses to forgive Bex.
Andi creates an art project to combat stereotypes; Bowie reveals his true feelings about the wedding; Jonah and Amber are not on the same page with their relationship.
Andi learns about a life-changing opportunity; Cyrus counsels Amber about her relationship with Jonah; Buffy has an awkward meeting with Marty’s ex.
Andi makes a big decision about her future; T.J.’s act of kindness toward Buffy lands him in trouble; Amber asks Jonah for some space.
Andi and her family take a road trip; while helping Jonah move, Buffy and Cyrus are surprised to learn the identity of his famous mom.
When Celia leaves town, Andi and Bex throw another party; Buffy and Cyrus share relationship woes; Andi shares a secret.
