Ilaaka is an action drama. The movie follows the story of a young man named Raja (Mithun Chakraborty), who stands up against all kinds of injustice. Raja lives in slum areas, which is terrorized by the criminal named Naagar (Amrish Puri). Raja befriends Inspector Suraj (Sanjay Dutt), who too had past enmity with Naagar. The duo join hands to fight against the evil Naagar and set scores right with him for all his past sins. Will the two succeed in teaching Naagar a lesson?