A man goes back in time to Arthur's court and attempts to make himself king, but he lacks the knowledge of metallurgy and chemistry to build 20th century weapons and gadgets so he becomes Arthur's sorcerer Merlin.
A man from Uranus attempts to recruit Earth convicts to leave on his home planet but they can't alter their criminal behavior and the king sends them back to their cell on Earth.
A scientist working on biochemical weapons hallucinates that the people he comes across in a small town are real when they are in fact a model created for an atomic bomb test.
A man finds himself in a strange city beneath the whirlpool that exists only for those brave enough to challenge the whirlpool, but when he steals some of their gold, they condemn him to return to the outside world moments before he plunges into the whirlpool.