After a high school lab experiment goes horribly wrong, Mordecai and Rigby must go back in time to battle an evil volleyball coach in order to save the universe — and their friendship.
| Directing | J.G. Quintel | Director |
| Writing | Matt Price | Story |
| Writing | Mike Roth | Story |
| Writing | Michele Cavin | Story |
| Writing | John Infantino | Story |
| Writing | J.G. Quintel | Screenplay |
| Writing | J.G. Quintel | Story |
| Writing | Sean Szeles | Screenplay |
| Writing | Sean Szeles | Story |
| Writing | Owen Dennis | Story |
| Art | Paula Spence | Supervising Art Director |
| Production | Ryan Slater | Producer |
| Production | Sean Szeles | Supervising Producer |
| Production | Mike Roth | Supervising Producer |
| Sound | Mark Mothersbaugh | Music |
| Sound | John Enroth | Music |
| Sound | Albert Fox | Music |
