An island has been decimated by a volcanic eruption and the few survivors escape to a nearby island. Led by Rutolo, they know that their new home is equally susceptible to such a catastrophe via its own volcano, but they are unable to convince the current inhabitants of Island #2 to flee with them to a mainland.

A man gets caught up in a criminal organization and finds that once in, you can't get out.

John Lackland seizes the English throne, believing the rightful ruler, his brother Richard the Lionheart, to be dead. When he learns that Richard is being held captive by the German emperor and can be ransomed for a large sum of money, he refuses to pay and orders the messengers, including Sir Henry of Nottingham, to be killed. Sir Henry escapes to Sherwood Forest, which belongs to his estates. There he joins forces with a group of Anglo-Saxons and fights under the name Robin Hood against the regime of the king's traitors...

Police Commissioner Verrazzano (Luc Merenda) is visited by charming Giulia Medici (Janet Agren) who claims that her brother, banker Valter Medici didn't commit suicide but was murdered. The investigation leads Verrazzano to dark secrets of loan sharks.

Major Paolo Altieri of the Paratroopers Corps foils the kidnapping of child, but becomes the victim himself of a violent assault by the bandits. He realises that the criminals have used an experimental machine gun that's used only in his own Corps. Altieri begins to take part in police raids on criminal activities, and ultimately discovers a conspiracy to overthrow the democratic government.

Cormack, the lawman most feared by the rugged pioneers at the turn of the century, has a mysterious bond with "Caribou," an outlaw whom he has jailed. When Caribou escapes from prison, he returns to seek revenge.