Sophomore year finds Aiden, Tom, and Margaret as RAs of their old dorm floor. Aiden tries to prove himself to Laura, but Chad's arrival gets in his way. Meanwhile Jack, Monica, and Nina run into some problems with adjusting to college.
When a fight breaks out between Chad and Monica, Tom and Aiden are forced to find out which one is to blame. Meanwhile, Jack joins a club that has bad blood with Ash, and Nina takes Margaret on a campus-wide student group odyssey.
Jack puts his friendship with Ash at risk when they are assigned to perform a romantic scene, Monica intervenes with Chad's means for making up for his lost scholarship, and Tom and Aiden try to put on a social event for their residents.
Tom tries to bring holiday spirit to the floor with a Secret Santa gift exchange! Chad uses the exchange as a way to blackmail Jack, Nina develops a crush on her Santee, and Margaret's Scrooge-like ways threaten to turn Tom's plans to coal.
A sudden earthquake rocks campus, trapping the undergrads inside the residence hall! Aiden and Margaret confront Seamus, Jack and Monica are in the midst of a breakup fight, and Tom, Jessie, Ash, and Chad try to find their friends.
Spring semester gets off to a rough start as Aiden and Margaret try to get Tom reinstated and Jack tries to fulfill Monica's wish of helping Chad, while Nina makes some new friends who may not have the best intentions for her.
A campus-wide charity drive and a mysterious case of cash threaten to tear the undergrads asunder, as Chad tries uses the event to help him settle his debts, Jack opposes Ben's leadership, and the girls discover their competitive side.
A fire breaks out in the dorm, leaving Aiden and Margaret to find the culprit in order to keep their jobs. Meanwhile, Nina, Jessie, and Lindsay search for a place to live next year, and Chad tries to settle his bad blood with Jack and Ash.