Ram Kumar lives a wealthy lifestyle in Calcutta with his brother, Prashant and Parvati, his sister-in-law. Since his school-days he had befriended a young orphan named Laxman, who also lives with them. Years later, Ram and Laxman have grown up, and Laxman has joined the Calcutta Police Force. Impressed with Laxman's dedication and diligence, the Police Commissioner assigns him to investigate, dismantle, and arrest an underworld don called Cobra and his gang. Laxman's investigation leads him to the culprit, but before he could take any action, he is killed. Ram swears to avenge Laxman's death, and sets forth to seek Cobra. Prashant attempts to convince Ram to give this up and leave it to the police, but Ram refuses, and ends up moving out of the house. Then Ram finds out who the culprits are - none other than the Cobra gang - and sets out to avenge Laxman's death. On doing so...
Aditya, the son of a terminally ill businessman, discovers that his father has lost all his wealth to a swindler. Seeking revenge for this crime, he travels to London.
Inspector Amar Damjee intervenes by chance during a terrorist attempt on the Chief Minister's life after several bodyguards were killed; several terrorists were killed, one arrested, but two escaped. The Chief Minister entrusts Amar with the task of finding and arresting the rest of the gang that had done already other successful attempts against government officials. Amidst an...