The movie is about a circus boy named Sahir (Aamir Khan), whose father (Jackie Shroff) was murdered by the circus owners. Sahir plans a plot to rob the money of owners kept in a Chicago bank in order to avenge his father’s murder. Aaliya (Katrina Kaif) is his co-worker and helps him with his plan. To prevent this robbery, ACP Jai Dixit (Abhishek Bachchan) and Ali Akbar (Uday Chopra) visit Chicago. What follows is a hit-and-chase drama and some daunting stunts.