男主角马克,亲眼目睹了妻子被谋杀,在寻找凶手的过程中发现妻子其实是一名特工。马克加入特工组织,阻击恐怖分子的同时,寻找妻子被杀的真相......When his wife Lidia is mysteriously killed, the former \"Folgore\" Marco Tancredi soon discovers a dark truth: Lidia was part of the Italian Secret Service, so he too joins the organization to have his vengeance.