Hick handymen Val McKee and Earl Bassett can barely eke out a living in the Nevada hamlet of Perfection, so they decide to leave town -- despite an admonition from a shapely seismology coed who's picking up odd readings on her equipment. Before long, Val and Earl discover what's responsible for those readings: 30-foot-long carnivorous worms with a proclivity for sucking their prey underground.
When trucker Jack Burton agreed to take his friend Wang Chi to pick up his fiancee at the airport, he never expected to get involved in a supernatural battle between good and evil. Wang's fiancee has emerald green eyes, which make her a perfect target for an immortal sorcerer named Lo Pan and his three invincible cronies. Lo Pan must marry a girl with green eyes so he can regain his physical form.