The film revolves around Madhavan Nair (Nedumudi Venu), who unknowingly kills a teenager, and his eldest son Raja takes the blame and is sentenced to jail for five years. After returning from jail, his father refuses to accept him still with no knowledge that his son was innocent, so Raja moves to Madurai and there, he rescues the life of the son of the village landlord Maniannan (Charan Raj), and then Raja turns his right hand and is named as Madurai Raja. Years later, he started being known as Pokkiri Raja (Mammootty), a fearsome kingpin. Meanwhile, Surya (Pritviraj), Madhavan's younger son, is a young, energetic, educated, naughty guy who is well-famous for his rowdyism in his village. He is sent to Ernakulam to his brother-in-law Sugunan (Suraj Venjaramoodu) to change his character, who is a scary cat. At Ernakulam, Surya falls in love with Aswathy (Shriya Saran), unknowing that she is the daughter of Rajendra Babu (Siddique (actor)), the City Police Commissioner. Sugunan takes advantage of Surya's character and sends him in his uniform to take care of some severe police cases. Surya gets arrested for this offence. Rajendra finds that Surya is in love with his daughter and charges Surya with another drugs case and makes it a non-bailable offence. Meanwhile, Rajendra plans to murder Surya in jail and gives the contract to Raja. At this point, Madhavan goes to Madurai in search of his elder son who left for Madurai 10 years back, and asks for his help to rescue his younger son Surya. After realising that Surya is his brother, Raja starts the game to help his family and end Rajendra.