In 1940, shortly before the outbreak of World War II, the Greek Embassy in Rome reported to Navy General Staff, that an Italian spy had been identified to act in its environment, but in the meantime the spy was dead. Following the torpedoing of Elli, the clergy falls on the lieutenant commander Vassilis Vachliotis, fiance of the daughter of Rear Admiral Liosis, who accepts to be deprived to serve his homeland in this way, helping to discover and capture the spies who are planning to steal the secret plans of the Greek fleet.—Tony Montana