Austin gets a gig to sing at the Miami Internet Music Awards, but only one other can make the trip with him. The competition is on to see who Austin picks to join him.

A top music manager wants to represent Austin, but none of his friends are invited.

When Ally’s old summer camp friend Elliott comes to town to pay a visit, he and Ally spend a lot of time catching up and reminiscing about the past. Though Austin is now dating Kira, he suddenly finds himself jealous of Ally’s friendship with Elliott.

When Ally’s mom comes home to host a book release party, Ally works up the courage to finally conquer her stage fright and performs a duet with Austin at the event.

Ally is asked to be on a magazine cover, so she goes to Tranquility Spa, where Trish works. But when Trish isn't very good at her job, Ally may be humiliated. Meanwhile, when Dez tries to outdo Chuck in a chilli-making contest, Austin loses Ally's grandma's special necklace.

Trish is organizing a Kids Club holiday party at which Austin and Ally will perform their original holiday song and distribute Austin Moon dolls, but a mix-up at the toy factory leads to a scramble. Meanwhile, Trish puts Dez and his arch nemesis, Chuck, through a competition to determine who will be a better Santa for the party.

Ally's record producer teams her up to write a duet with an artist, Gavin, which among other is in love with Ally. Austin becomes jealous and decides that he wants them to reunite, but Ally confesses that she now has a crush on the new guy.

When Austin and Ally are paired together in Home Ec, they get to imagine life together as a married couple. Meanwhile, Trish helps Dez book a job directing a commercial.

Ally is performing at an awards show but the producers are worried about her dancing abilities.