In 1968, engineer Giorgio Rosa established the independent state called "The Isle of Roses" off the coast of Rimini, built on a platform outside the territorial waters, with Esperanto as the official language. The Italian authorities did not take it well because the micronation was seen as an expedient to not pay taxes on the revenues obtained thanks to the arrival of numerous tourists and curious people.

World War II: Resistance fighters accept a suicide mission to deliver a stolen Nazi submarine carrying atomic uranium. Hunted by Hitler’s army, the crew must outwit the German Navy to bring the cargo safely to America.