The story of the movie goes like this:
Ali's (Uday Chopra) dream of becoming a police officer finally turns into reality. He is Assistant Commissioner of Police Jai Dixit's (Abhishek Bachchan) right hand man. They try to keep a tight leash on crime together, but fate has something else in store for them.
Aryan succeeds in dodging Jai and Ali, who are working on his case round the clock. Then comes Shonali Bose, Jai's college mate, now a police officer.
She helps put pieces of the puzzle together as she has been closely tracking these thefts and is now considered an expert on Aryan, whom no one has seen - not even Shonali.
Aryan finds his match in Sunehri (Aishwarya Rai), a petty yet clever thief. They decide to work together and thus the game begins.
