| Director | Siva |
|---|---|
| Country | India |
| Budget | ₹100 crore |
| Box office | ₹125.2 crore |
Ajay "AK" Kumar, a former CTS Field Commander believed to be dead on records, intercepts an arms deal between the General Secretary of Europol police and the head of a Russian mafia gang in a dense Serbian forest and escapes with the weapons drive after eliminating the military personnel in the forest. The CTS agency learns that AK is alive after being presumed dead in a mission, where they had assigned AK's best friends and colleagues Michael, Rachael, Shawn, and the Chief Strategist Aryan Singha to track down AK.
Past: AK live a happy life with his wife Yazhini, who owns and manages an Indian restaurant. Their life is interrupted by a mission to trace Natasha, an outlaw hacker from Bulgaria who was responsible for cracking the security codes of the plutonium weapons. There have already been three man-made seismic activities caused by the explosion of plutonium bombs. Natasha is wanted by the Interpol, CIA and various other terrorist groups around the world for her hacking skills. AK's mission is to secure Natasha, thereby preventing two future seismic quakes targeted in India. AK heads to Serbia in search of Natasha and is guided by local translator Arumai APS Prakasam.
AK interrogates the hospital doctors in the city and finds that Natasha had undergone plastic surgery. An Albanian gang captures Natasha's boyfriend and tortures him to death. With the help of the pacemaker found in Natasha's boyfriend's body, AK traces Natasha and moves her to a safe house. Natasha was unaware that the code she decrypted was that of a nuclear weapon. She felt guilty and proposed to defuse the remaining weapons from a neutrino site. On their way to the site, Natasha gets killed by a group of terrorists, while Aryan, Michael, Rachael, and Shawn ambush AK. However, AK survives the ambush and recovers in the forest, where he retrieves the weapons drive during the arms exchange deal in the Serbian forest.
Present: Aryan, who is sure that AK has not discovered their betrayal as yet, send Rachel and Mike to meet AK after finding out his location, instructing them to kill AK as soon as they come into possession of the weapons drive. After they meet AK and start talking to him, at one pint of time, AK switches on a lot of infra-red lights in the surroundings, effectively disabling the communication devices Rachel and mike had been carrying, revealing that as he was about to fall from the top, he saw them shooting at him. Rachel and Mike realize too late that this was AK's trap all along, and they both are finished off by AK. Aryan hires a group of assassins to kill Yazhini, but AK neutralizes the assassins and saves her. Later, AK learns that Aryan and his teammates belong to a shadow government, which controls the economy of the world by war manipulation. With Yazhini's help, AK infiltrates into the CTS headquarters, where he meets Shawn and tortures him regarding the coordinates of buried weapon's location. Shawn gets killed by a time-bomb watch, while AK gets saved by Yazhini.
Aryan, as a CTS officer and shadow government agent, forces AK and Yazhini into hiding by framing AK as a wanted terrorist. AK releases a video challenging the CTS to save Aryan from being assassinated. Aryan is provided security and is not allowed to leave the building until the next 24 hours. Aryan escapes from the security by secretly killing his own guards. AK tries to stop the nuclear weapon from blasting by turning off the 10 main satellites by powerhub.
To prevent AK from continuing his job, Aryan kidnaps Yazhini and keeps her in a secret place. Aryan asks AK whether he will save Yazhini or stop the bomb. AK seeks proof for her kidnapping and Yazhini provides him with her location using morse code. AK arrives at the place, where he prevents the plutonium weapon from exploding and kills Aryan. AK, Yazhini, and their baby daughter Natasha go for a long drive, where a mission is assigned for AK.