A new scientific discovery reanimates a slain man who is either a missing person or a gangster’s archenemy.

On a fine day, one murder, one missing case and an accident case happens on the same day involving inspector Vikram who starts investigating all the three goes clueless with no evidence left behind. What happens next? Does he solves the mystery and succeed in his mission?

In 1279 A.D., the downfall of the Chola dynasty seems imminent as the Pandyas drive the Chola people out of their kingdom in southern India. To escape them and save the life of his successor the Chola emperor sends his son along with the Chola people to a secret territory. The refugees take along an idol sacred to the Pandyas, angering them. To capture the escaped Cholas and the stolen idol, the Pandyas extend their invasion to unexplored territories but cannot find them.
Centuries later, in 2009, Indian archaeologists continue searching for the existence of the lost Chola group based on clues left by the ancient Pandyan warriors. All archaeologists who attempted to search for the secret land have disappeared. Archaeologist Chandramouli is the most recent person to have gone missing suddenly.

The film starts with a flashback. ACP Bose (Karthik) is a sincere police officer happily married. He lives with his parents and younger brother Velu (Arun Vijay). Velu is a college student, and he falls in love with his classmate Anjali (Dhansika). Enters Umapathi (Chandrasekar), the villain who is notorious for settlements and land deals. Anjali comes across Bose when she is on a field trip from her college with her friends. She gets friendly with his daughter Pinky, who tells her that she would get her introduced to her uncle Velu, and they would make a good pair. It turns out that Velu studies in Anjali’s college and soon after, they come to know each other and get close.
Bose investigate the case of Umapathi, whom no one has been able to touch. He is even involved with a land deal involving crores of money which is completely illegal and others including the DIG is involved. When the chairman of the bank who has lent money for the deal demands the money back as the deal has not worked, Umapathi eliminates him.

Velu is a waiter at a holiday resort in Chennai. He wants to make enough money to pay for his working permit to work abroad. However, he has had a traumatic childhood. After the death of his parents, his uncle and aunt sent him to boarding school, where he is initially bullied. In order to survive in the new, harsh environment, he learns to fight to protect himself. As a young adult, he moves to the city to start a new life. As poor, single young men, Velu and his roommate Tirupathi face lots of hardships in the city. They eventually meet Muni, an agent for an underground fight club. After seeing Velu win a fight at a bar, Muni introduces him to the ruthless owner of the fight club, Natwar Dada. Velu slowly rises up the ranks and becomes one of the city’s best underground fighters. Velu then meets a girl Kavya and plans to stop fighting in order to be with her, but he needs to make enough money to escape his current life. Muni also needs money to get his house back. Together, they hatch a plan to rig Velu’s next fight with Victor, the city’s top underground street fighter.

A group of nine childhood friends join an arts college together in a small town. Soon, Shobana becomes a part of their group, joining in the fun and games. Muthu eventually falls in love with her.

Dom and the crew must take on an international terrorist who turns out to be Dom and Mia’s estranged brother.

Kameshwaran is a talented ad film director who works in a company owned by Vanangamudi, in which Kamu’s cousin Rameshwaran is the CEO. Despite being more talented and skillful than Ramu, Kamu does not become the CEO because of a small mistake he did the past. He rues over this issue and blames Lord Brahmma for making his life not as he wished for. Kamu is in love with Manisha, an advertisement model, and she too reciprocates his feelings.

When an extortion gang spreads terror in Madurai, ACP Jayasheelan is assigned to bring an end to their wrongdoing. However, he is unaware that the mastermind of the crimes is someone close to him.

Udhayan works as an assistant manager in a bank and falls in love with a young lady.

Theju is a software engineer who goes into a depression following the break up with her boyfriend. She distances herself from her family and becomes an alcoholic.

Arjun, an IPS officer sets out for a mission on hunting down illegal bikers involving in theft and murder.