The story is based on Aditya Kumar (Ajay Devgan), a famous actor who plays a very famous superhero on TV, who lives with his family which consists of his wife and two children. He consistently tries to explain to his son that all cartoons are fake and he shouldn't waste his time watching them, to which his son replies, he is also a fake hero as stuntmen do the real action. Humiliated, he leaves home, and is soon kidnapped by the cartoons his son watches. Unbelievable, a group of cartoons named Devtoons from a cartoon world named Toonpur would like Aditya to fight their enemy Jagaru and leave Toonpur in peace.
Aditya first hesitates but when a character from Toonpur named Bolly says he is a fake hero, he feels disturbed but then agrees to prove he is a real superhero. Aditya and his cartoon friends attack Jagaru's base and defeat the Toonasurs but in the process many of their friends get kidnapped by Jagaru. Now only one option is left for Aditya; to get the Toonastra from Rubdoot and erase Jagaru. But Jagaru gets to know of this and so kidnaps Aditya's family. Now Aditya has to enter Jagaru's game and rescue everyone taken hostage by Jagaru.