Veera Raghavan, an Indian RAW field operative is assigned to capture a terrorist named Umar Farooq. While he successfully manages to do so, a missile shot by him to prevent Farooq's escape injures and kills a civilian child, traumatising Veera, who quits the agency and returns to Chennai. Months later, Veera is still reeling from the after-effects of the child's death. He meets Preethi at a wedding, and they fall for each other, where she convinces him to join her company Dominic & Soldiers, a failing security service. Meanwhile, the Tamil Nadu government gets intel that a major terrorist event is planned in Chennai. He meets Preethi at a wedding, and they fall for each other, where she convinces him to join her company Dominic & Soldiers, a failing security service.
Teddy, a struggling fitness entrepreneur in Yorktown, Virginia, is fired from his job at a local gym. He decides not to tell his wife Lori, taking her to Onancock for her birthday. Leaving her at a spa, Teddy arrives at the wrong cabin, where a man named Coughlin is being held hostage. Mistaken for "the Man from Toronto", a mysterious assassin with a talent for brutal interrogation, the clueless Teddy manages to intimidate Coughlin into giving up a code. The cabin is raided by the FBI, who convince Teddy to pose as the Man from Toronto to help capture would-be Venezuelan dictator Colonel Marin. Much to Teddy's jealousy, an agent is assigned to accompany Lori and her friend Anne on a day of luxury in Washington, D.C., telling them the trip has been provided by Teddy's job. As Toronto, Teddy meets Marin's wife Daniela, who flies him to San Juan, Puerto Rico with orders to identify Green, Coughlin's partner, and bring him to the Colonel in D.C.
In the midst of a deadly pandemic caused by a virus which makes the infected patients violent and zombie-like, originating from the DMZ that has already devastated the United States and North Korea, a man wakes up in a blood-soaked bed in a motel room in Seoul, with a cross-shaped scar on the back of his head. Armed CIA agents burst in and threaten him demanding the whereabouts of Dr. Jung Byung-ho. With no recollections of his past, he doesn't know who he is or why he is there, let alone who Dr. Jung is. A female voice inside his ear which only he can hear, tells him that his name is Carter and he needs to accept her directions if he wants to live. Following her instructions, he escapes the room and enters a public bath where nearly a hundred gangsters attack and try to kill him. Thanks to his lethal fighting skills, he survives their assault.