Bang Bang is the story of Harleen Sahni (Katrina Kaif), who finds herself in deep trouble when she encounters Rajveer Nanda (Hrithik Roshan), a spy trying to clear his name.

When Rajveer slips an important device into Harleen's bag, she gets tangled in a world outside her sphere. The film chronicles their attempts to survive and clear their name.

The film grossed around 5 crore nett in its Telugu and Tamil versions