Jay Ray (Hrithik Roshan) is a dance teacher in Las Vegas, Nevada. As a sideline, he marries immigrant women to get them green cards in exchange for money. When Gina (Kangana Ranaut), the rich daughter of a powerful Anglo-Indian casino owner Bob Grover (Kabir Bedi), falls for him, Jay goes along to marry into money. He discovers that his future brother-in-law, the vicious, homicidal Tony (Nicholas Brown), is about to marry a Mexican woman named Natasha (Bárbara Mori), whom Jay knows as Linda, the last of the immigrant women he married. On the night before "Natasha" and Tony's wedding, Linda and Jay humorously agree to a "divorce" that night. A jealous, gun-wielding Tony arrives at her apartment while Jay is there. After he hits her, Linda impulsively knocks him out with a heavy object while he tussles with Jay. Linda and Jay go on the run toward Mexico, with Tony and the police in pursuit. They are helped by a friend of Jay, Robin (Anand Tiwari). Robin gives them fake passports and IDs so that they can go wherever they want.
In the following week, Jay and Linda get married in Mexico. On the day of their wedding, they come back to their house. There, Robin comes to give them the passports and is unexpectedly shot by Tony and his men. Linda and Jay escape, but Jay is shot in the process. In a car chase, Linda stops the car at a train, puts Jay aboard it, and drives off. Back to the present, Jay meets with Jamaal, one of Bob's employees, and is ambushed. Jamaal is killed but not before telling Jay of Linda's whereabouts. Jay kills off all of Tony's men and then kills Tony by smashing his face into the car door. He is shot then by Gina. He drives off to the location where Jamaal said Linda was last seen. It is shown that after Jay was put aboard the train, Linda was ambushed on a cliff and sent Jay a text message saying, "I am going...Sorry, Forget me". She drives off of the cliff, killing herself by drowning. Jay cries and then smiles, jumping off the cliff as well. Finally, he is reunited with Linda under the ocean, and they embrace through death.
