The Duchess, the aunt of Red Ryder, comes to town to protect her property. Crawford, a town big-shot behind an outlaw gang, tries to prevent her from reaching her destination, but the attack is thwarted by Red. The latter is made town marshal, and when he gets too close to the truth and is making it too hot for the Crawford faction, Crawford has his henchman Luke kidnap Red's Indian friend Little Beaver.

A wildcat oil outfit is seeking to take over the ranch belonging to Pop Martin and his son Bob and daughter Helen. Bob sends his ex-army pals a "stay-way" message, which brings them on the double. The WW II vets use their jeeps, first for a cattle roundup, and then to round up the gang of crooks, including the crooked family-lawyer Thatcher, brains of the gang.