The movie revolves around Thomman (Rajan P. Dev), who is a thief, and his two adopted sons, Shivan (Mammotty) and Sathyan (Lal (actor)). The story begins when they decide to mend their ways and lead a hardworking life. They own a lorry now and want to find work. Their lorry breaks down near Udumalpet. There the twists start. Sathyan steals the food from Panicker (Janardhanan (actor))'s house. Actually the rice is mixed with poison by Panicker due to oppression from the village head Thevar (Kalashala Babu because Panicker's son cheats him and his daughter and go with Thevar's Money. Thomman eats the food and is hospitalized. After returning from hospital Thomman and sons come to Panickers house to know the truth. Now there is also Thomman and his sons with Panicker to help them and they defeat Thevar gang and take Thevar's Aid ''Rajakkannu'' or ''Rajappan'' (Salim Kumar) as their ''Adima'' means Slave. Later Thevar's daughter Poonkavanam (Laya) falls in love with Shivan. Thevar arranges Shivan's marriage with his daughter. There Kaaliyappan (Anand), who Poonkavanam's maternal uncle comes to stop the marriage. His plan success. At the marriage night Sathyan becomes a thief who robs the groom's Ornaments. Then Shivan and Sathyan Separates due to this incident. Actually Kaliyappan was its master brain. He tries to kill Sathyan and tell everyone that he escaped with the money. He killed Panicker's son by this way. But now Kaliyappan fails. Shivan come and help Sathyan. They go to Thevar’s house and reveals to him the truth about Panicker’s son and all misdeeds of Kaliyappan. After all becomes good there is a bad news for Shivan and Sathyan by Rajakkannu that Thomman due to his son’s separation attempt to suicide from a big mountain. His ''sons'' come there and Thomman tell that they would fight and Defeat him then only he stops his suicide attempt. At Last ''The Comical Climax Takes Place''. Shivan and Sathyan beats Thomman and Thomman says -''Ningalu thommanne makkalu t