The films starts with SI Balachandran aka Balu, a honest police officer who heads to Pambinthurthu to confront and arrest V. R. Nadesan, an illegal liquor brewer. He fails to do so after a fellow policeman betrays him, and there, he is mauled to death by Nadeshan’s hounds.
The story progresses to 25 years later, where Madhavan Nair and his brother in law visit Pambinthurthu on the basis of the complaints put forward by the school staff on the island. Nadesan tries to oppose them. Chinnan is sent to help Madhavan, but the situation goes out of hand when Chinnan gets arrested. Here, Raja arrives and takes over. The rest of the movie follows on how the rivals try to defeat each other.