Megamind is an extra-terrestrial with a huge head gifted with extraordinary intelligence, with only eight days old, is sent to Earth by his parents as his home planet is destroyed. Megamind is a super villain, he realizes that the only thing that is good, is be bad, so what the next years, try to conquer the Earth . However, all attempts have been annuled by his arch enemy, the superhero Metro Man. But everything changes one day when Megamind kills Metro Man in the midst of one of his evil plans. Suddenly without an enemy to conquer, discovers that fight and be beaten, is its reason for being, and that winning is not really funny, so he decides to create a new super hero, a larger opponent and stronger. This original, anti hero will thus have the greatest adventure.