When Dean Pelton loses himself — and a chunk of the college budget — in a virtual reality system, Jeff seeks help from its cantankerous inventor.

A rival's attack ad puts the group into defensive mode — and a moral quandary. Britta and Chang find new ways to gross everyone out.

Dean Pelton's sexuality gives him an uncomfortable edge for a school board seat. Chang scores a surprise win in a stage adaptation of "The Karate Kid."

When prisoners roll into Greendale via telerobot, Jeff meets his match in a clever convict. Britta's plans for a raging house party backfire.

A hacker angry over a racist comic's planned campus performance threatens to publish the activity committee's personal emails.

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

A commercial catchphrase catapults Chang to viral fame and a life-changing move. The group bands together to make movie magic for Abed.

Visiting Professor DeSalvo gives Jeff and his friends a master class in grifting and a bonus lesson on the art of revenge.

A 19-foot plaster hand guides the group on an emotional journey as they travel through mountains and flashbacks while aboard Elroy's RV.

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.