In an epic season finale, the Save Greendale Committee embarks on an epic journey to actually save Greendale.

The Save Greendale Committee has one last chance to save its beloved school.

Jeff suffers a psychotic break that entrenches him in the animated world of G.I. Joe.

Jeff helps Duncan score a date with Britta while Abed and Hickey have a strange evening of bonding and Chang has a ghostly encounter.

COMMUNITY -- "Geothermal Escapism" Episode 504 -- Pictured: -- (Photo by: Justin Lubin/NBC)

To celebrate Troy's last day on campus, Abed declares a campus-wide game of "The Floor is Lava" with a coveted $50,000 prize.

COMMUNITY  "Cooperative Polygraphy" Episode 503

Following the tragic death of Pierce, the gang is subjected to a group lie detector test to determine if any of them are to blame.

COMMUNITY -- "Basic Intergluteal Numismatics" -- Pictured: (l-r)  -- (Photo by: Charles Christopher/NBC)

While Greendale is terrorized by the resurgence of the notorious Ass Crack Bandit, Jeff and Annie painstakingly investigate the crime spree.

Community -- "Introduction to Teaching" -- Pictured: Danny Pudi as Abed

Jeff learns the teaching ropes from Greendale's finest professors.

COMMUNITY -- "Repilot" Episode 501 -- Pictured: -- (Photo by: Justin Lubin/NBC)

The Greendale Gang returns to their alma mater to help save the school...by suing it.