Both of them studying in Monsters University also known as MU, this is where they have many different types of monsters. Mike and Sullivan was removed from the course they are taking because they ruined the gas tank. Mike wants to get back in MU and decided to join team of OK. They needed six monsters in a team and they are lack of one. Mike has no choice but to take Sullivan in the team, it is about team work if they want to win the scare game! No kidding with only Mike and Sullivan that knows well of scaring children, the rest of the team are not. Mike is the one in charge of training them except for Sullivan.
Find out in this movie about how to get the OK team compete with other teams. This movie bring laughter to son and me. :D