Dimitris Zannidis

The adventures of a secret British agent who undertakes his last mission, with Greece as his destination. His mission will prove extremely dangerous, as foreign double agents, the Greek police, and ruthless killers become involved in a relentless chase that takes us to various parts of Greece, such as Meteora, Athens, and Nafplio.

October 28, 1940. Along with the Italian army's attack on the Greek-Albanian border, Greece comes under fire from the Italian air force. The submarine Papanikolis, commanded by Captain Milto Iatridis and First Officer Vasilis Aslanoglou, is ordered to patrol the Gulf of Patras. Following the army's victories, the war council decides that it is time for the navy to enter the war and orders the submarine Papanikolis to patrol the Strait of Otranto. There, the crew captures the crew of an Italian ship and their engineer reveals the minefields of the Adriatic. Thus, the Papanikolis begins its mission. After completing its mission, it returns to its base, where it is honored.

A series of mysterious murders is causing headaches for the country's secret services, who are discreetly but persistently investigating every aspect of the case. With the help of various coincidences, it is revealed that the crimes are linked to the activities of foreign agents operating in Greece. As it turns out, all these agents—although their origin is not specified—are trying to steal a series of valuable and highly classified documents related to some "serious" experiments being carried out secretly at a NATO military base. Espionage against espionage and constant chases.