Computer genius and chess champion Ted Danson is lured into service by secret agent Eleanor Parker and becomes a reluctant hero thanks to a number of exploits with villainous Christopher Lee and his army of lethal blue-eyed blonde women.

Playing around with a Ouija board, a trio of friends succeeds in contacting the spirit of a young boy. Trouble begins when the evil spirit, Malfeitor, takes over one of their bodies.

When a dispute occurs between a logging operation and a nearby Native American tribe, Dr. Robert Verne and his wife, Maggie, are sent in to mediate. Chief John Hawks insists the loggers are poisoning the water supply, and, though company man Isley denies it, the Vernes can't ignore the strangely mutated wildlife roaming the woods. Robert captures a bear cub for testing and soon finds himself the target of an angry mutant grizzly.