The film is about Pandian (Rajinikanth), who wants to avenge his sister's (Jaysudha) husband's (Charan Raj) death. He joins the murderer's gang and how he takes revenge forms the crux. Then the gang came to know that Pandiyan did an undercover operation, Pandiyan was a police officer. The rest of the story deals with how Pandiyan caught the culprit, with stylish approach.