The study group struggles to incorporate a fellow classmate while working on a project for Professor Kane's class.

When the yam the study group was growing for biology class is killed, Troy and Abed are on the case.

The study group contends with a group of German students who take over the study room. Chang makes his return to campus.

A plan to celebrate Jeff's early graduation is unexpectedly disrupted by the study group's evil doppelgangers from the Darkest Timeline.

New administrative consultant Frankie's strict — and sobering — changes split the group when Abed goes rogue to side with the enemy.

Britta's ex-boyfriend, Rick, returns, reigniting her far-fetched dreams of a normal relationship. Annie goes to extremes to win Elroy over.

Heroes are born, promises are broken and the stakes are raised when paintball makes an explosive return to Greendale's campus.

When two Greendale students get married, the wedding reception takes a turn after Jeff unwittingly exposes an inconvenient truth.

The former study group's future — and friendships — are put to a test when one chapter of their lives closes and a new one begins.