After being released from prison, ex-gunfighter John Wesley Hardin hopes to have his autobiography published in order to rehabilitate his tarnished reputation.

A glowing brain-like creature arrives on a beach near a rocket test site via a teleportation beam. The alien communicates telepathically with the children of scientists. The kids start doing the alien's bidding as the adults try to find out what's happening to their unruly offspring.

Three men and a woman crash-land in a deep crater in Antarctica, where they find a prehistoric world.

A party of archaeologists discovers the remnants of a mutant five-millennia-old Sumerian civilization living beneath a glacier atop a mountain in Mesopotamia.

A giant prehistoric praying mantis, recently freed from the Arctic ice, voraciously preys on American military at the DEW Line and works its way south.

The impressive title work is the viewer's first clue that producer William Alland and director Eugene Lourie squeezed considerable artistry and style from a shoestring budget. Look past the economic limitations; the suspenseful and imaginative story involves the death of a humanitarian genius whose father (a famous surgeon) and brother (a robotics expert) team up to keep the genius' brain alive in a robot body (well designed by ace effects artist John P. Fulton). The film's message concerns the nature of the soul and the role which physical sensations play in making humans act humane. Other affects by Fulton include one of sci-fi cinema's best death rays. All in all, a moving and intelligent movie

Aliens come to Earth seeking scientists to help them in their war.