A homicidal maniac is on the loose in Los Angeles, killing motorists at random with his "death car". After losing his brother Jeff to the twisted assassin known as "Skull", Rick Benton takes it upon himself to hunt down the reckless drivers that fill the streets at night. Being a master mechanic, Rick spends his time converting his pick-up truck into an armed and dangerous vehicle. With speed to take on the fastest car and strength to make sure in a one-on-one situation, he will be the only survivor. The cops soon find out about the vigilante known only as the "Gladiator" and do all they can to catch him before his citizen's arrests go one step too far.
