Hum is an action comedy drama. The movie follows the story of a young man named Tiger (Amitabh Bachchan), who helps his father to extort money from the dock workers, as his father works for Bhaktavar (Danny Denzongpa), who rules the docks in Mumbai. Later, due to some differences in thoughts, Bakhtavar kills Tiger’s father and stepmother, and he is left to take care of his two half-brothers - Kumar (Rajinikanth) and Vijay (Govinda). Tiger wants to avenge his parents death, but the responsibility towards his young brothers stops him at the moment. He takes his brothers and moves to a faraway place, and renames himself as Shekhar. However, years later, his past comes to haunt him. Will Shekhar/Tiger finally take revenge to set the scores right?