The story revolves around an orphan Tony (Bobby Deol) who has grown up on the streets after he was abandoned by his uncle and aunt in the city. To have to survive in the concrete jungle, Tony learned to live by his wit and courage. Right from petty theft to loan recovery, Tony did everything for a price.
After earning a handsome packet in a bout where he had to risk his life, Tony went with his friend to a musical show just to relax in the air-conditioned hall. He was woken up from his slumber by the singer on the stage, Sapna (Priyanka Chopra) a dream come true for Tony. He fell in love with Sapna and he started chasing his dream without realizing what an impossible dream it was. Tony was a roadside hoodlum while Sapna was a rising star in the show business and coming from a respectable family. It was Sapna who did not want to hurt him and tried to wake him up to face the reality.
She took him to Mr. Arjun Bhatia with whom her parents had fixed up her marriage and both the families were preparing for the wedding. Tony was heart-broken but not ready to give up on his dream yet. He thought he just needed to match up in status to ask for Sapna's hand from her family, claiming to be better suitor than the doctor. For that, only money was required and he was ready to do anything to earn it. At that point of time, Tony got an offer through his regular underworld agent, to coerce a government officer into signing some papers. The money was good and the work was easy. Tony didn't ask a second question. He went straight to the Drug and Food Administrator Dr. Khurana's office and threatened to kill his family members if Khurana did not sign on the dotted line.
Little did he know that Dr. Khurana was Sapna's father and his signature would allow the corrupt businessman Raj Mallya to release his spurious drugs in the market. The drugs that would eventually kill hundreds of innocent children and get Dr. Khurana convicted for life and the family ostracized from the society.
Tony realized he has ruined his own dream; he has erased the only rainbow of happiness that was there in the horizon of his life. It was because of him that Sapna's father was behind the bars, which in turn had led to her mother's suicide. He wanted to undo whatever he had done unknowingly. Shattered and traumatized, Sapna by now had become emotionally dependent on Tony. She had started loving him, so it was doubly difficult for Tony to accept his guilt in front of her. Yet he did that and set out to find out who was behind the spurious drugs. This made him confront people, with whom he had been working all these years and who were extremely dangerous.
Raj Mallya, the corporate kingpin, came to know that Tony was searching for facts. He ordered his men to eradicate him. Tony realized that until and unless he gets at his enemy first, they would not let him and Sapna live their lives. He also had to get a confession out of Raj Mallya in order to prove Sapna's father innocent. How will he do that? Mustering up all his courage and ingenuity, street-smart Tony gets into the battle to save his love and life.
But what has Fate in store for him eventually? Does his Kismat lend him a helping hand?