Four years after the group has separated, Austin and Ally's relationship has ended as a result of their busy schedules. Dez and Trish arrange for Austin and Ally to perform a song together on The Helen Show, hoping to reunite them. Ten years later, Austin and Ally are married and have two children. Dez has also married Carrie whilst Trish married Chuck.moreless
As Austin's first album is about to be released, Austin, Dez and Trish help Ally realize her dream by applying for her to get into a prestigious music school. But when Ally is accepted to the school, she must decide whether to go to New York or stay in Miami with her friends.moreless
When Ally's new record label prohibits her from writing any more songs for Austin, Austin must look for a new songwriter. So Ally dons a disguise to become Austin's new songwriter.
In order to star in Dez's horror film, Austin must overcome his fears of umbrellas.
As Ally helps Austin prepare for his date with Kira, she realizes that she has feelings for Austin herself.
Ally accidentally gives away all of Sonic Boom's instruments and then hosts a fund-raiser to buy them back.
Austin prepares to break-up with Kira to be with Ally, but Cheetah Beat's new cover complicates things.
As Austin is about to sign with a major record producer, his doctor warns him that he may lose his singing voice if he doesn't undergo medical treatment.
When Trish gets Austin the privelage of being on the cover of a magazine, she fills out a questionare and makes Austin's life sound more interesting. The reporter for the magazine comes and sees Austin do crazy (andweird) things including: eating bugs and bungee jumping off a bridge (Ally's idea).
Austin and Ally judge a singing competition where Ally mentors a young singer.
Trish gets a job at a musical diner, Austin develops a crush on Trish's new coworker and Dez is addicted to the diner's chicken pot pies.
Dez and Trish make a film about Austin and Ally's partnership.
As the gang waits in line all day at the mall for the release of a new electronic tablet, Austin accidentally loses Ally's pet bird and must retrieve it before she finds out.
After Trish's ex-boyfriend, Trent, steals a song from Ally and becomes an overnight internet sensation (à la Austin), the gang comes up with a plan for payback.
When Ally's friend from camp visits, Austin gets jealous.
Austin writes a new song, but is then sued by Val, claiming he stole the song from her.
As Austin and Ally go on their first date, they find it hard to make the transition from just friends to being a couple. Their relationship is further complicated when their clash over a song they've been asked to write for a movie. Can they maintain both their personal and professional relationships at the same time? Meanwhile, Dez and Trish film a a video to win tickets to the new Zaliens movie.moreless
Austin, Ally, Trish and Dez attend the Halloween Spooktacular in New York City, where they tell scary stories about an alien; a haunted phone operating system and a werechicken.
After Ally, Trish and Dez tell Austin that they won't be joining him for their senior year at high school, Austin decides to enroll in military school. But when the gang changes their mind, they must stop Austin before it's too late.
Ally is up for a songwriting award, but a video of her dancing may ruin her chances of winning.
The gang goes to Jimmy's Stars Halloween Party where Austin is set to preform with another singer, but Trish and Dez may mess things up.
Austin and Dez find and read Ally's songbook and mistakenly believe that Ally's secret crush is Austin. When Ally and Trish discover the truth, they plan to teach Austin a lesson.
Trish's quinceañera (fifteenth birthday party) presents Austin with the opportunity of performing for a big time club owner and Ally with the chance to dance with her crush, Dallas.
After Ally writes a song that Austin doesn't like, Austin & Ally decide to spend more time together to learn more about each other. Meanwhile, Trish and Dez learn they have more in common than they realized.
Austin, Ally, Trish, and Dez go to New York City so Austin can perform at Times Square for New Year's Eve but he was no way to go perform. Jessie wants to sing a song with Austin and when they don't like the lyrics that Jessie wrote, they found a lyric that they wrote but it turned out that it was Zuri so Jessie tries to find a way to make sure they don't find out it was Zuri so it wouldn't ruin her chance to sing a song with Austin.moreless
As the A & A Music Factory nears its grand opening, Austin and Ally must turn a group of young students into musicians in a week's time.
Ally is jealous when another girl wins a date with Austin in a charity auction and she worries they might hit it off.
After getting a negative review, Austin is unable to perform.
When Austin is invited to do his first radio interview, he decides to finally give Ally the recognition she deserves by playing her song on the radio. But when Ally's stage fright prevents her from performing live on the radio, the gang tries to figure out a solution.
The gang venture to the beach to help Ally get inspired to write a new summer song for Austin to enter a contest on the radio. However, their plan is detoured when they're detained by the police for breaking into the ice cream shop and they must explain their actions and make it to the beach bash in time for Austin to perform.moreless
When Austin is invited to perform at the Miami Internet Music Awards, the gang is excited about attending their first award show. But, when Austin learns he only gets one extra ticket, he must decide whether to invite Ally, Dez or Trish as his guest.
Ally accidentally hires Dallas to work at Sonic Boom even though her dad can't afford an employee. Meanwhile, Austin and Dez try to beat a world record.
Trish seeks advice on dating a boy she's crushing on.
Austin's tour takes the gang to Washington, D.C., where Austin is to perform for the president, but not before they get into trouble at the Smithsonian Museum.
Austin joins the school glee club, but a disagreement with Ally threatens to split the glee club apart.
A fortune teller predicts disaster for Austin's comeback concert; and things immediately start to go wrong.
Austin and Ally cannot wait to tell the world that they are a couple during the Worldwide Music Awards, but Jimmy tells them if they do, he'll prevent Austin from making music for 10 years. Austin is faced with a choice: Ally or his career?
Austin and Ally's new student is a troublemaker and also the son of the woman dating Ally's dad.
Austin and the gang are invited to spend the weekend in the Everglades at Shiny Money's houseboat where Austin and Ally must write a song for the Swamp Blast. Meanwhile, Dez and Trish investigate the urban legend of a killer gator named Big Mama.
While Ally is away at a spa, Austin searches for her missing necklace.
Ally and Trish's old music teacher has opened a new soup restaurant in the mall. But when Ally's innocent "twit" causes the restaurant to lose customers, it's up to the gang to make a commercial to save the restaurant and finally earn Ally a gold star from her former teacher.
Austin's new co-star for his music video has bad breath.
When the gang gets trapped in Sonic Boom on Halloween, they pass the time by telling a trio of stories to outscare each other.
As the gang prepares for the filming of Austin's latest video, chaos ensues involving an escaped kangaroo, a broken window and the destruction of a jacket belonging to an ultimate fighter named Facepuncher.
The gang goes on tour with Austin, but Ally is presented with an opportunity which may take her away from her friends.
Trish is jealous of Ally's new friend.
A top talent manager is interested in signing Austin as a client, promising to make his dreams come true. But Austin soon learns the price of success may break up Team Austin and cost him his friends.
After an anonymous blogger targets Austin online, the gang tries to discover the blogger's identity and stop her from ruining Austin's career.
After aspiring rock star Austin Moon inadvertently steals a song from introverted songwriter Ally Dawson, he becomes an overnight internet sensation. But when he lands a big television appearance and needs to write another song to perform, Austin must convince Ally to partner up with him.
The gang imagines how different their lives would be without Austin in them.
Jimmy wants to use Ally's new song for his daughter, Kira, but when the gang accidentally records over it, Jimmy drops Austin from his label.
Ally tries to teach a new violin student, but she and Austin soon discover she has other talents. Meanwhile, Dez helps Trish film a video book report.
Austin & Ally travel to the future and learn about the future of music.
Ally lands a gig as a singer with a girl group, but when she tries to quit, complications present itself.
Austin and Ally try to help bring home the father of one of their students for Christmas, while Dez and Trish work as Santa's elves.
Austin tried to help his former idol revive his singing career.
After Ally is rejected by choice college, she decides to slack off in school. Meanwhile, Austin and Dez learn their favorite childhood ride is about to close, so they decide to take one last ride.
A brother/sister act want to start their own music academy; but first, they need to get rid of the competition.
Dez obtains a magical typewriter that makes everything he types come true. But when the typewriter falls in to the wrong hands, it spells trouble for the gang.
After missing most of Austin’s tour to focus on her music career in Miami, Ally longs for her friends and decides to catch Austin’s performance in Portland. Ally barely makes it on time, and is now torn between continuing to work on her own music, or joining her friends for the last leg of Austin’s tour.moreless
Austin and Ally prepare a budget for Life Skills class while at the same time wondering what married life would be like for them; awkwardness ensues when Dez is hired to direct a commercial and it turns out the star is his ex-girlfriend, Carrie.
Dez isn't happy when his sister starts dating his arch rival, Chuck.
Austin writes his own song, which he intends to premiere at a camp ground, but things go wrong very quickly.
Austin secretly performs at a karaoke club in disguise, at the risk of being found out by Jimmy Starr. Ally mentors a girl with even more stage fright than what she had.
A mix-up at the toy factory ruins the new Austin Moon doll right before the dolls are to be given out at a Christmas party for kids.
Against Jimmy's orders, Austin joins the basketball team. But when he sprains his knee, will he be able to dance at his next peformance?
Austin disappears before his scheduled performance on "Video Countdown Live" and it's soon discovered that Brooke is holding him captive until he writes a song for her. What will Austin do to escape or will he miss the Video countdown?
Ally meets a new guy named Gavin and develops a crush on him.