Andi is contemplative and artistic and sheltered by overprotective parents. But on the eve of her 13th birthday, Andi's free-spirited older sister Bex returns home with a revelation that changes everything and sends Andi on an uncharted course of self-discovery.
Andi Mack (Season 3)

The Boys Are Back (Episode 1)
Writer: Terri Minsky
Air date: 2018-10-08
Runtime: 23 min
Overview: Andi anxiously awaits Jonah’s return from summer camp; Andi is surprised to learn who Buffy likes; Bex gives Celia a makeover.

Howling at the Moon Festival (Episode 2)
Writer: Elena Song
Air date: 2018-10-15
Runtime: 23 min
Overview: 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.

It's a Dilemna (Episode 3)
Writer: Erin Dunlap
Air date: 2018-10-22
Runtime: 23 min
Overview: 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.

Hole in the Wall (Episode 4)
Writer: Sam Wolfson
Air date: 2018-11-02
Runtime: 23 min
Overview: 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.

That Syncing Feeling (Episode 5)
Writer: Suzanne Weber
Air date: 2018-11-09
Runtime: 23 min
Overview: 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.

Cookie Monster (Episode 6)
Writer: Phil Baker
Air date: 2018-11-16
Runtime: 23 min
Overview: 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.

The New Girls (Episode 7)
Writer: Elena Song
Air date: 2018-11-30
Runtime: 23 min
Overview: Andi questions her friendship with Buffy; Cyrus comes clean with his friends.

I Got Your Number (Episode 8)
Writer: Sam Wolfson
Air date: 2019-01-18
Runtime: 23 min
Overview: 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.

Secret Society (Episode 9)
Writer: Phil Baker
Air date: 2019-01-25
Runtime: 23 min
Overview: Invitations from a secret society at school cause tension between Andi and her friends; Bex and Celia search for the perfect wedding dress.

The Quacks (Episode 10)
Writer: Erin Dunlap
Air date: 2019-02-01
Runtime: 23 min
Overview: 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.

One in a Minyan (Episode 11)
Writer: Jonathan Hurwitz
Air date: 2019-02-08
Runtime: 23 min
Overview: Andi, Buffy and Jonah support Cyrus as he sits shiva for his grandmother; Bowie's homemade kugel dish creates a scandal.

The Ex Factor (Episode 12)
Writer: Erin Dunlap
Air date: 2019-02-22
Runtime: 23 min
Overview: Andi, Buffy and Cyrus worry about Jonah's unusual behavior; Miranda tries to cause problems for Bowie and Bex.

Mount Rushmore or Less (Episode 13)
Writer: Suzanne Weber
Air date: 2019-03-01
Runtime: 23 min
Overview: 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.

Hammer Time (Episode 14)
Writer: Jason Dorris
Air date: 2019-06-21
Runtime: 23 min
Overview: 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.

Unloading Zone (Episode 15)
Writer: Phil Baker
Air date: 2019-06-21
Runtime: 23 min
Overview: 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.

One Girl's Trash (Episode 16)
Writer: Elena Song
Air date: 2019-06-28
Runtime: 23 min
Overview: 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.

Arts and Inhumanities (Episode 17)
Writer: Sam Wolfson
Air date: 2019-07-05
Runtime: 23 min
Overview: Andi learns about a life-changing opportunity; Cyrus counsels Amber about her relationship with Jonah; Buffy has an awkward meeting with Marty’s ex.

Something to Talk A-boot (Episode 18)
Writer: Elena Song
Air date: 2019-07-12
Runtime: 23 min
Overview: 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.

A Moving Day (Episode 19)
Writer: Suzanne Weber
Air date: 2019-07-19
Runtime: 23 min
Overview: 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.

We Were Here (Episode 20)
Writer: Terri Minsky
Air date: 2019-07-26
Runtime: 23 min
Overview: When Celia leaves town, Andi and Bex throw another party; Buffy and Cyrus share relationship woes; Andi shares a secret.

Seasons

Episodes 12

Episodes 25

Episodes 20