A framed man escapes prison and takes a wealthy woman's Jaguar with her in it. After she tries to escape numerous times, they begin to develop feelings for each other, and enter a road race that ends in Mexico.

Julie, an American on vacation in Mexico, spots a giant, one-eyed amoeba rising from the ocean, but when she tries to tell the authorities, no one believes her. She finally teams up with a marine biologist in an attempt to destroy it.