IDC Agent Jon (Jay Chou) sustains grave injuries on a mission and decides to spend his final days with his mother. She tells him a long-held secret. To fulfill her wishes, Jon goes to Southeast Asia. He befriends medical specialist Rachel (Lin Peng). When she is forced into the schemes of a criminal organization, Jon attempts rescue and becomes the target of the organization that includes his estranged brother Yeung (Nicholas Tse)! When the organization betrays Yeung and kidnaps his daughter Sheng, the brothers join forces to rescue Rachel and Sheng.