A new summer brings the heat; Alex's birthday rager goes off the rails when his worst enemy and old flame crash the party; Madisson struggles with the idea of a long-distance relationship.

When a brawl breaks out at Alex's birthday, new alliances are forged and old friendships are tested; after Juliette insults Chloe, Chloe amps up her attempts to ruin Juliette and Alex's relationship.

Juliette confronts Chloe about her feelings for Alex and her motives in bringing Cara around; Alex buries the hatchet with Jared, who takes interest in Kelsey; Garrett goes on a first date with someone unexpected.

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Chloe learns that her friendship with Cara may not be as genuine as she thought

After days of turmoil for Jalex, Juliette witnesses something that could change her and Alex forever; Madisson stars in Brandon's music video, causing issues in her relationship with Ben and prompting jealousy from Brandon's girlfriend.

Juliette struggles with the news of Alex and the two girls in his bed; Chloe learns that Ben has been sexting Tawni behind Madisson's back and hatches a plan to catch him in the act; Brandon's girlfriend's jealousy reaches an all-time low.

Juliette receives some shocking information from a surprising source; Garrett and Cara take a huge step in their relationship; Jared struggles to assimilate by using alcohol to escape his past; Pauly gets arrested on a felony charge.

With Jalex on the rocks, Alex connects with an old flame. Madisson reaches her breaking point with Ben. Brandon sets out on tour as a single man and is pleasantly surprised by who shows up at his concert.

Garrett and Cara's relationship is tested; Brandon and Jared compete for Madisson's affection; Pauly faces consequences for his arrest and takes steps to earn his way back into Grandma's good graces.

Juliette turns 21 years old and Alex tries to buy his way back into her life with an extravagant present; Garret and Cara are already at a crossroads when Garrett reveals a job opportunity that puts their relationship in jeopardy.

Pauly tries to defend Alex and stirs up drama at Cara's end-of-summer bash; Chloe shares some findings with Juliette that make her rethink everything she knows to be true; Cara loses her cool with Garrett.