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.
John David Carson
as Lt. Matt Jones
Carol Bagdasarian
as Coral Adams
Louis Nye
as Fred Smith
Herb Edelman
as Villa Nueva
Arte Johnson
as Doc Bailey
John Doucette
as Capt. Mundy
Jim McCullough Jr.
as Pvt. Hansen
Bill Thurman
as Sgt. Bond
Louisa Moritz
as Hilda
Terry Wilson
as Stonewall Adams
Marged Wakeley
as Martha Adams
Pedro Gonzalez Gonzalez
as Sanchez
