A two- front war between Indian intelligence agencies and the Pakistani establishment.

Commando Karanveer Singh Dogra, is skilled in many aspects of survival, weaponry, and hand-to-hand combat. He is on a mission to eradicate black money, which has been siphoned to banks along with his gang.He goes to Vicky Chaddha’s house where during night time, his wife Maria reveals that they didn’t have a life like this in the past. The film flashes to a flashback where his husband was forced to do all this because when he declined to do a negative job, the very next day, a bomb blast occurred where Vicky was saved but their daughter Tara died. Very soon, Maria kills her husband and says that she is the real Vicky Chaddha. Karan and his gang follow Vicky Chaddha and finally find her transferring money to an account. Karan beats up all the army in her team but doesn’t stop the money transfer. It is then revealed that he changed the account in which the money was scheduled to the transferred and the replaced account which will help the poor people. He said this was planned on the very first day. When Vicky says that police cannot arrest her, Bhavna Reddy shoots Vicky and they get out of there. While Karan and Bhavna will be together, a phone call arrives where Karan says he is waiting for a new mystery to arrive.

A handicapped man Krishna (Suriya) arrives at Mumbai from Kanyakumari at a train station after boarding a train from there. He, along with a taxi driver Raja (Soori), travel around Mumbai to look for his elder brother, Raju. Raja tries to get to know about Krishna but is unable to get any details about him from him. Krishna rents a hotel room, takes a shower, and changes his clothes. He gets Raja to take him to a club, where Krishna then tries to meet an old associate of Raju named Amar, who is a very powerful gangster through his henchmen, but fails. He then meets a close friend of Raju named Rajiv (Asif Basra), who overheard his conversation with Amar’s henchmen. Rajiv tells Krishna that Raju is Raju Bhai (Suriya), a powerful and feared gangster. He then tells things to Krishna about Raju, until he passes out from being drunk.

An army captain visits Mumbai to be with his family and find a suitable bride. However, an explosion in the city sets him off on a mission to find and disable a terrorist sleeper cell in the city.