S4, EP10 "Legacy"
In the finale, the KT's fight to save their house from demolition, and Cappie and Casey make a decision about their relationship.
S4, EP9 "Agents for Change"
When Rebecca finds out that ZBZ is up for the Golden Lily award for being the best chapter in the country, she recruits the help of former house president.
S4, EP8 "Subclass Plagiostomi"
Casey and Evan continue their feud during a mock trial in Professor Segal's class, making the case personal instead of a simple class assignment; Rusty and Calvin must save Dale from being humiliated by the Omega Chis during the Pledge Talent Show.
S4, EP7 "Midnight Clear"
A snowstorm finally hits CRU and the gang retreats to Dobbler's, where friendships are mended, a relationship ends, and a surprise second kiss happens.
S4, EP6 "Fumble"
Rusty wakes up hungover and tries to retrace his steps to discover what he did the night before, which included a kiss with an unlikely person.
S4, EP5 "Home Coming and Going"
Cappie tries to impress Peter's dad (Jonathan Silverman), and Calvin discovers Heath's secret.
S4, EP4 "All About Beav"
Beaver finds an unlikely love interest in Katherine. Meanwhile, Casey tries to track down some study notes and uncovers a secret about Heath.
S4, EP3 "Cross Examined Life"
Ashleigh and Katherine return to campus, and Rusty must choose between his pledge and helping Dale.
S4, EP2 "Fools Rush In"
The KT's attempt to recruit new pledges, Tegan (Charisma Carpenter) returns to help the ZBZ's maintain their top position.
S4, EP1 "Defending Your Honor"
Casey digs into why she was rejected from CRU law school, while Calvin and Rebecca adjust to their new duties as presidents.