On the first day of school, Rue's excited about her new friend, Jules, but struggles to put the past behind her and gets into trouble at Fezco's. Nate becomes obsessed with Maddy's hookup, Tyler, while trying to get back together with Maddy. Kat finds out that a video of her has surfaced online. McKay takes the stress of college out on Cassie.

Kat decides to try camming and has her first session. Jules starts falling for a boy online and asks Rue to help her take some nudes. Maddy finds something odd on Nate's phone. Cassie and McKay spend the weekend at his school and go to a party at the frat he's rushing. Rue is confronted about her lies at NA.

In the aftermath of the carnival, Maddy and Nate are forced to deal with a police investigation. Jules begins to feel pressured by her role in Rue's sobriety. Kat ignores a confused Ethan and embraces her new lifestyle. Cassie ries to distance herself from Daniel and focus on her relationship with McKay. Cal worries about how his actions have affected his sons.

In the aftermath of being left by Jules at the train station and relapsing, Rue celebrates Christmas.

Rue pursues a new business venture, Cassie settles into a routine, and Cal finds a target.