Mei (Chan) is a 12 year old mathematical prodigy, kidnapped by the Chinese mob to calculate and memorise their financial operations in New York. When she is re-kidnapped by, but escapes from, the Russian mob, she discovers an unexpected protector in the form of down-and-out former cage fighter, Luke Wright (Statham).
Mei has a number in her memory, the code to a safe that is key to an exchange of a vast sum of money for a blackmail disc. The disc was put together by the Mayor of New York (Chris Sarandon) and the exchange is his retirement fund. Among the material on the disc are details of an anti-organised crime taskforce, which secretly included two black ops assassins: the mayor’s aide, Alex Rosen (Anson Mount), and Luke Wright.
With the Russians, the Chinese, and every corrupt cop in New York after Mei, Luke will need every move in his arsenal to protect her and find redemption.