Prasad and Rajesh are brothers and police officers tasked to take down a smuggling ring. Taradas and his uncle Tarasankar outwit the efforts of the police. Things take a twist when Rajesh realizes that his wife Tulasi was the ex-girlfriend of Taradas.
Balram, an honest police inspector, turns to drinking and womanizing after facing several hardships in life. However, when a criminal he nabs gets acquitted by the court, he decides to fight again.
Four years after the events of Aavanazhi, Balaram and Seetha are married with a daughter. When Seetha is killed by Dulabribai's men, Balram sends his daughter to be cared for by nuns along with his partner Madhavan. Balram faces his enemies, including Indira Shankar and Sayed Mohammad Shah, and Preethi avenges her father's death.
When Balram nabs a cache of arms and ammunition, his investigations lead him to a criminal leader, Tharadas. However, it is not easy for Balram to catch Tharadas until he involves his girlfriend.
