
During WWI, the Germans try to encourages and hires a band of certain Mexican guerrillas and bandits to make trouble on the Texas border and attack the Stonewall Farm. He plans this so the Americans will have no choice but to send more troops to Texas instead of Europe. Masterminding the plot is a German spy who has, at his disposal, the RX4, a specially equipped weapon-bearing automobile of awesome speed, but a U.S. Army lieutenant carries the day with his own fleet of Model T racers.

as Lt. Matt Jones

as Coral Adams

as Fred Smith

as Villa Nueva

as Doc Bailey

as Capt. Mundy

as Pvt. Hansen

as Sgt. Bond

as Hilda

as Stonewall Adams

as Martha Adams

as Sanchez

as Juan

as Little Cloud