A man befriends a fellow criminal as the two of them begin serving their sentence on a dreadful prison island, which inspires the man to plot his escape.
A mild-mannered chemist and an ex-con must lead the counterstrike when a rogue group of military men, led by a renegade general, threaten a nerve gas attack from Alcatraz against San Francisco.
During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals.
In a corporate-controlled future, an ultra-violent sport known as Rollerball represents the world, and one of its powerful athletes is out to defy those who want him out of the game.