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