Synopsis :- Virat (Vijay) is a car racer who lives with his large family in Chennai. His father, Jagmohan, had gone to Kadapa in Andhra Pradesh to work at a colliery and never returned, prompting Virat and his family to think that he is dead. Virat comes to know that a Malaysia-based don named Koccha (Suman) owes his father a huge sum of money. Virat and his friend Pons (Vivek) travel to Malaysia as Kuruvi, the trade jargon for low-level contraband carriers. They come to Malaysia at a time when internal rivalry and problems are surfacing in Koccha's family. Koccha's younger sister Devi (Trisha Krishnan) has refused to marry Soori (Pawan), the brother of Konda Reddy (Ashish Vidyarthi), Koccha's Kadapa-based business associate, as per Koccha's wishes. Irritated and preoccupied, neither Koccha nor his henchmen want to devote any time or attention to resolve his problem. Virat is ill-treated and thrown out of Koccha's place without any help rendered. Determined to return to India only after his father's issue is solved to his satisfaction, Virat conceals himself in Koccha's palace-like residence. He soon finds out about a large diamond owned by Koccha and steals it, feeling that it would pay off his father's debt, and returns to India with Pons. Koccha's Sisiter also follows Virat to India, having fallen in love with him.
Knowing that Virat has stolen his diamond, Koccha and his gang visit Virat's house and threaten his family with dire consequences unless Virat returns the diamond. After confronting Koccha, Virat comes to know that his father is not dead, but is being held as bonded labour along with many innocent people at Kadapa. Singamuthu had discovered diamonds at the colliery, but refused to allow Koccha and Konda Reddy to illegally mine the diamonds for their own benefit. He had been held prisoner in Kadapa since.
Virat immediately leaves for Kadapa, where he encounters Koccha again. He throws him onto a moving train, paralysing him. He soon discovers a slave camp run by Koccha and Konda Reddy at the colliery, where a womanising rowdy named Kadapa Raja (G. V. Sudhakar Naidu) is torturing the inmates, including Singamuthu. He single-handedly takes on Konda Reddy, Kadapa Raja and their henchmen, killing them all. He drags Konda Reddy's dead body to Koccha's mansion. The wheelchair-bound Koccha, on seeing the dead body of his associate, recovers and attempts to shoot Virat, only to be arrested at that moment by a special task force led by Raj (Nassar). Singamuthu and the others who were imprisoned in the slave camp are finally freed and reunited with their families.