Sulley is the best Scarer in all of Monstropolis. With the help of his best pal Mike, Sulley brings back the most screams to the city to be converted into energy. But when Mike begins to wonder what it would be like to be a Scarer himself, he is determined to show Sulley he can be scary, too! There's just one problem: whenever he tries to scare Sulley, Sulley ends up laughing instead! Can Mike manage to scare Sulley, or will he be the jokester monster forever?