Introduction: Policeman Wu Weijie was discovered by the gang leader He Biao during an undercover operation. He was injected with drugs and lost his memory. The former lover, policewoman Lin Simin, tracked Wu Weijie's whereabouts and helped him restore his memory. The two worked hand in hand to destroy He Biao's lair hidden in a mysterious port overseas, and exhausted He Biao and his men, so that the light of justice could be revealed.