The prom takes unexpected turns.

After their Fourth of July fun, Jenna and Matty continue to rekindle their friendship by throwing a party for Jake, at least until Jenna’s latest Idea Bin post threatens to unravel it all.

Jenna takes things with Luke to the next level, and Tamara’s debt comes back to bite her.

Jenna is on top of the world when she gets home from her freshman year of college, but her newfound confidence is shaken when she discovers she’s not the only one who’s changed.

Rivalries and romances all come to a head on the Palos Hills High School senior ski trip.

Sadie and Jenna team up to reveal Eva's past to Matty.

Tamara accuses Jenna of sabotaging relationships, so Jenna confronts her ex-boyfriends to find answers.

Jake secures shifts for Jenna and Tamara at the country club for the Fourth of July, but Sully’s plans for an after-hours party on the golf course lead to some dramatic fireworks.

Jenna struggles with her parents' separation. Feeling responsible, she tries to absolve herself by attending a church camp.

Jenna prepares for her first Valentine's Day with a boyfriend; Jenna and Tamara are jealous that Matty and Ricky seem to be moving on.

Jenna's plans to sleep with Jake are hindered by Aunt Ally's wedding, someone from her mother's past and Sadie.

Jenna's imagination runs wild as she fictionalizes her blog in an attempt to change her fate.

Jenna tries to communicate with a distant Matty; Tamara questions Jake's talent for music.

Jenna and Matty try stay friends and have sex, but Jenna find the arrangement unbalanced.

Jenna and Tamara compete with sophomores for the Spirit Week title and attention from Matty and Jake.

Jenna decides to visit Luke at college; Matty and Jake spend a night in jail; Tamara has an unexpected hookup.

Jenna and Tamara view the possibility of separate futures; Eva plots to keep Matty and Jenna ousted.

Jenna tries to keep everything balanced, but with the stress of college applications and boy-related drama, her final Spring Break is not much of a respite.

Some senior pranks manage to cause chaos. Jenna's vow to not think about Matty ends up being tested after she overhears a worrying secret.

Jenna causes an accident at school that has surprising results. Meanwhile Matty must deal with the aftermath of his confrontation with Jake.

Jenna wants to tell Matty the truth.

Prom season arrives at Palos Hills High School; Jenna receives some surprising news.

Jenna refuses to let a series of obstacles ruin her chance at having a dream prom.

Everyone tries to make the last night of high school count.

Jenna reveals what happened to her and the rest of the gang in the last year—what caused the freeze between Matty and Jenna, what sparked the friendship between Sadie and Tamara, and how Jake and Lissa rekindled their romance.