Mr. A (Hrithik Roshan) sky-dives and lands on a train that is carrying the British Queen. He steals her crown by disguising himself as the Queen, beats her guards easily and escapes. Newly promoted officer Ali (Uday Chopra) and Jai Dixit (Abhishek Bachchan) are introduced to Shonali Bose (Bipasha Basu), a special officer assigned to investigate Mr. A’s case, who also happens to be a former classmate of Jai. After the initial investigation, Dixit analyses the underlying trend in Mr. A’s heists. As per his analysis, a theft in one of two famous Mumbai city museums will follow.