Sasi, who was the cop in charge, ordered that the documented criminal cases in the form of manuscripts be converted into digital format. During this process, he came across a really spine-chilling dacoity murder case from several years ago. After reading the case history, he called up the police officer who had taken charge of the case, Theeran Thirumaran.
1995: Theeran was in his police training college, who was undergoing training to be posted as DSP from T.N.P.S.C exams. Theeran topped the training period and returns to his hometown of Tanjavur, where hehad fallen in love with his new neighbor Sripriya alias Priya, and the two happily got married. Simultaneously, a group of dacoits wrecked a house, situated along the highway of Tamil Nadu, where they barged and killed all the people inside gruesomely and took their belongings. Later, Theeran became known in the police department for his ways of handling various cases, and was later moved to Ponneri after a dacoital attack. Police Inspector Satya and Theeran both handled the case but leaded nowhere with the case.
2003: Theeran, Sathya, and a group of other cops went around India to see if they were able to identify the fingerprints of the dacoits. During this process, Theeran learnt that these dacoits were actually tribe members of the left over cultural groups after the Indian Independence. They were eventually stopped by the carelessness of their superior officers, and the case was put on hold. Later, the dacoits raided the house of the ruling party’s MLA and killed him. The government was under heavy pressure from the public, and the Home Minister gave Theeran all powers and a full team to nab the dacoits.
2004: Theeran and his team found one fingerprint match in Uttar Pradesh prison and went to a lorry station to capture the dacoit. Learning that the lorry had left and it was heading to Ponneri, Theeran and the other officers rushed to stop them. The dacoits raided Sathya’s house where they killed his wife, but Sathya’s daughter was saved and Priya was put in a coma. Angered by this incident, Theeran, with the help of higher officials, put together a team to capture the gang of dacoits leaded by Oma. They camped in Rajasthan with the help of a local police officer. They also learnt that the gang members except Oma were in their village, so they visited the village, only to be sent out by the villagers.
While the case is going on, Theeran learns that Priya has died, which fuels his anger, and her death makes him even more motivated to find Oma. The team learns that there is a way to bring Oma out from his village. Theeran captures the organizer of the gang and one of the gang members and puts them in police custody. Infuriated, Oma vows to kill Theeran and his team. Theeran receives information that Oma will be on a train which is infiltrated by the team. Oma’s right-hand man Khali manages to beat the cops that attempt to capture Oma. Theeran manages to arrive, but Oma pulls the chain and he, Khali, and friend Bhora escapes. A local shepherd offers Theeran and his team a stay at his village
Theeran and his team walk to the village and resided there for the night. Oma’s gang infiltrated the village using the hunting tactics of wolves. Theeran formulated a plan and managed to kill all of them except Oma and Khali. Oma set the village on fire and escaped with Khali. However, on their way out, Theeran shoot Khali dead. Theeran chased Oma the whole night and caught up with him. After a prolonged fight Theeran knocked out Oma and dragged him back to Tamil Nadu to be sentenced.
2017: It was revealed that Theeran was promoted to a high rank and leading a beautiful life with his wife and children. Theeran was visited by Sathya, Sathya’s daughter, and Sasi, who being impressed by his work and history, saluted him in glory.