A penniless Prince and a petty thief become associates in a con game and when they end up in prison, the Prince, who is a compulsive gambler, loses all his money to the other and becomes his servant.

Assola is an imaginary village on the border between Italy and France and the borderline crosses the village itself. The French customs agent Ferdinand is always trying to catch the Italian smuggler Giuseppe. Giuseppe discovers that Ferdinand was actually born in Italy and therefore he can't be a French customs agent.

A destroyer departs from the port of Taranto with orders to take a load of petrol to Tobruk at all costs.

A team of highly trained Italian seamen are taken to the island of Stampalia where there are to take their torpedo-laden attack craft on a daring attack on the port of Suda.