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.
Not streaming on a subscription service in the US right now.
Starring J.G. Quintel, William Salyers, Sam Marin, Mark Hamill, Minty Lewis, Jason Mantzoukas, David Koechner, Roger Craig Smith, Ali Hillis, Kurtwood Smith