Rod Cooper, an American agent of the CIA, is sent to Paris to discover if colonel Segura, head of a clandestine organization which proclaims itself anti-Castroist, is playing a double game at the expense of the United States. He first tries to make contact with Ms Beckett, who should tell him. Segura's intentíons, but the woman is found killed. Subsequently, Rogerson, another American, presents Cooper to Segura himself and so Rod can enter his organization. Here he discovers that the colonel tries to attract a certain number of Americans to use them in an attack against the president of a state of southern America and thus promote communist expansion. Segura soon discovers Rod's real identity and tries to get rid of him; but the agent manages to reverse the situation and kills Segura in a shoot-out.

Former racing champion John Lee Scott coaches young driver Dustin Rich. The learn of a new Italian model that can reach 300 kilometers an hour developed by an 80 year old racing expert.

A Roman Consul, on his way to fight a border war, stations a garrison of soldiers in a provincial town. The townspeople aren't happy with this situation but decide it's in their best interests to cooperate. However, the Tribune left in charge of the garrison proves to be cruel and demanding.

Professor Freeman is an important English scientist that is investigating a method to treat cancer. His daughter is killed in the swimming pool of a hotel in Beirut. The case is confidential so that the mission is entrusted to the Special Agent Mikel Brown.

The devious general Cethegus plays the Byzantine and Gothic forces against each other for his own gain.