The leader of the terrorist organization Titan obtains a new type of atomic weapon with amazing power. Retired special forces soldier Wang Yan leads the Poison Wolf Squad to capture Titan, but accidentally lets Titan's wife An Mei escape. An Mei fights back and kidnaps Wang Yan's girlfriend. Wang Yan falls into a trap to rescue his girlfriend and loses the atomic weapon. An Mei threatens with the atomic weapon and demands the release of Titan. When An Mei welcomes Titan's return, she finds out that Titan is Wang Yan in disguise. A shocking life-and-death battle begins.