The movie begins in Madurai where a young boy Sakthi (Johnny) leads a happy life with his parents. A shocking incident changes his life. His parents are murdered by an anti-social and Johnny is forced to go to prison, where he is tortured. He comes across four criminals in the prison - Pandu aka Pandurangan (Nishanth), Dabba aka Prem Kumar (Theepetti Ganeshan), Mari (Thamizh) and Michael (Sandeep Ravinder). They sympathise with Sakthi, who seeks solace in their company. These hardcore criminals break loose from the prison and help Johnny take revenge on his parent's killers. They decide to go to Mumbai where they plan to become big gangsters. But fate has other plans. They land at Renigunta where they come across Bunker (Bunker), who acts as mediator between contract killers and clients.
At Renigunta, these boys get the acquaintance of Sardar (an influential don) through Bunker. After a successful murder in the town, Sardar takes these boys seriously. Meanwhile, Sakthi comes across a dumb girl (Sanusha) in the neighbourhood. After a few encounters, romance blossoms between them. But the girl's brother plans to push her to flesh trade. Taking pity on Sakthi, his friends decide to help him elope with the girl, but only after completing a murder for Sardar.
But all plans go haywire when they execute their murder plans. Sakthi loses a couple of friends in front of his eyes. An angry Sakthi turns to Sardar for help. But Sardar flees from the place. Sakthi eventually teaches him a lesson by bumping him off. But did he join hands with his lover girl or not forms the climax.