Mexican guerrillas team up with a German spy during WWI as he tries to infiltrate the United states with the help of a new secret weapon - the RX4 high speed attack car. Mishaps and mayhem abound.
Description by VCI Home Enteraintment:
It's 1918 - WWI - The Germans try to encourage certain Mexican guerillas to make trouble on the Texas border, thinking that our war effort will somehow be slowed down. Masterminding this insane plot is a German spy (Louis Nye), who has at his disposal, the ultimate secret weapon - RS-4 - a specially equipped weapon-bearing automobile of awesome speed.But, a US army lieutenant counters that with his own fleet of model tracers