 James P. Sullivan and his best friend Mike Wazowski work together at Monsters, Incorporated, a mega-company that delivers energy to Monstropolis, the place where they live. Mike and James are the best at what they do: scaring human childs so they can provide them enough screams to produce energy. But just when everything looked perfect, something happens and James releases someone who threatens to destroy not just the company but the whole Monstropolis itself! Will Mike and James be able to save the city by stoping the menace and put it back where it belongs? Or will Monsters, Incorporated come to an end and the days of scaring children be over?