Paul Lavond is framed for murder and robbery by his associates and sent to the Devil's Island. Years later, when Paul escapes with the help of a scientist, he vows vengeance on his associates.
A man from Manila, who deals in antiques, falls victim to an ancient Satanic curse, as a result of his wife joining a cult. To set things straight, he seeks help from a local historian.
When an evil king plans to use science to capture the world, Hercules joins forces with a sorceress to beat the monarch and save Cassiopeia, his lover.
In the 21st century, aliens invade the solar system. Using Mars as their base, they steal all of Earth's space stations then brainwash or kill the crews.