Jeff realizes he's earned enough credits to graduate on Community. "Advanced Introduction to Finality" is the 13th episode of the show's fourth season.
Abed does research on his study group and finds they have interconnecting pasts on Community. "Heroic Origins" is the 12th episode of the show's fourth season.
Jeff: Everyone on this campus is nuts Leonard [in pool]: Not me! Jeff: Oh come on Leonard, if you're going to argue with me, put on a bathing suit Leonard: Busted