When the boys arrive in Los Angeles, they are told by their new neighbor, DZ (parody of JZ), that they have to throw a party to fit in, and the boys decide to do it. Meanwhile, Stella and Macy arrive in L.A., with Stella thinking that Joe wants to continue their romantic relationship. But things go downhill when he's spotted hugging actress Vanessa Page (Abby Pivaronas).

Songs: "L.A. Baby"

Joe prepares for an audition with Vanessa Page, but when he arrives he is faced with a room full of actors who all resemble him. Stella and Kevin helps him while doing a scene for his audition. Meanwhile, Nick gets jealous when pro surfer, Stone Stevens asks Macy to work on his website.

Songs: "Fall"

Stella meets a new friend, Ben, while hiking with Macy and he asks her out. She accepts. Joe gets very jealous and confronts Ben. Meanwhile, it's an all out war between Kevin and Nick to see who gets the spot in Justin Timberlake's Ping-Pong Tournament.

Songs: "Make It Right"
Guest Stars: Chris Warren Jr. as Jake, Adam Hicks as DZ and Robert Adamson as Ben

Joe arrives late to movie set angering Mona. Stella's aunt takes up a new hobby. Meanwhile, Macy gives DZ a makeover and tips about what girls like in a guy. But the tips are actually what she likes in a guy, hinting to Nick.

Songs: "Invisible"
Guest Stars: Adam Hicks as DZ, Debi Mazar as Mona Klein, Kym Whitley as Officer Evie and Claire Demorest as Andrea Munroe

Joe asks Stella to find out if Vanessa likes him, but Stella is unwilling to do it, so she fails. She lies to Joe, telling him that Vanessa doesn't have feelings for him, which results in both costars being hurt. Kevin becomes Mona's assistant.

Songs: "Hey You"
Guest Stars: Debi Mazar as Mona Klein

When Big Man leaves Nick in charge of watching his niece Kiara for the day, she figures out that Nick and Macy have been keeping their relationship a secret from everyone else. In order to keep her quiet, Nick agrees to record a song with her. Meanwhile, Joe accidentally gives Kevin a black eye during his movie fight training.

Songs: "Your Biggest Fan", "Keep It Real" and "Set This Party Off"
Guest Star: China Anne McClain as Kiara Tyshanna

Vanessa arranges a double date with Stella and Ben and her and Joe to have a world famous sushi chef for them. Things get complicated when Ben and Vanessa finds out that Joe and Stella had something between each other before. Kevin and Nick are going to a golf course and Macy asks if she can come along.

Songs: "Chillin' In The Summertime"

Mona asks Joe if Stella wants to be the new designer on set, much to Vanessa's annoyance. Meanwhile, Kevin tells Nick that Macy only likes handmade gifts, so he makes a mug for her for their one month-iversary.

Songs: "Things Will Never Be The Same"
Guest Stars: Debi Mazar as Mona Klein and China McClain as Kiara Tyshanna

The brothers decide to make a new music video which Kevin wants to direct but is upset after his father hires a popular music video director, McP, to direct the video instead. Meanwhile, Frankie has a crush on Macy and is trying to win her heart away from Nick. Also, Stella gets sick and Aunt Lisa takes care of her.

Songs: "Drive"

A well-known celebrity blogger named Jessika nicknamed "The Movie Brat" interviews Joe for his movie, so Joe decides to flirt with her to prove to Stella that his charm is universal. Nick meets with a music producer. Also, Big Man makes Kevin do a vigorous workout to get back into shape.

Songs: "Critical"
Guest Star: Abbie Cobb as Jessika

With Joe and Stella not speaking to each other, Nick and Macy come up with a plan to get them to talk. Meanwhile, David Henrie challenges Kevin to a reality show competition.

Songs: "Chillin in the Summer Time"
Special Guest Star: David Henrie as Himself

In this episode Joe, Nick and Kevin do an interview on the radio to tell their fans they are not breaking up. On the interview they find out each of them have been doing a side project.

Songs: "Summer Rain"
Special Guest Star: David Henrie as Himself

In the series finale, The Jonas Brothers plan a secret concert to show their fans that they are not breaking up. Meanwhile, Stella feels betrayed when Joe doesn't tell her that he has to go to New Zealand to shoot his sequel movie "Forever April", so she leaves L.A. But right before she gets on the airplane, Joe runs into the airport and kisses her. So, they end up getting back together and they all have to get to the concert in which Nick and Macy have been waiting for them the whole time.

Songs: "Feelin Alive" "Critical" and "L.A. Baby (Acoustic Version)"