Rigby goes back to high school to graduate and earn his diploma, something he keeps secret from Eileen. But Eileen becomes suspicious when Rigby repeatedly cancels their dates.
Quest roles:
Janie Haddad Tompkins(Margaret (voice)), Minty Lewis(Eileen (voice)), Amy Sedaris(Mrs. Kessler / Jayla (voice)), Ben Diskin(Aiden / Steffen (voice)), David Koechner(Principal Dean (voice))