A group of adventurous kids, known as the "Rough Ridin' Kids", uncover a mystery when they notice a man named Big John Harkins breaking in wild horses, which are supposedly destined for a factory. Meanwhile, a large quantity of counterfeit pesos starts circulating in Arizona, near the Mexican border, prompting a Mexican police chief to pose as a bandit to investigate.
Wild Horse Ambush
A group of brave young outlaws, known as the "Rough Ridin' Kids", uncover a sinister plot when they suspect Big John Harkins of stealing wild horses intended for a factory that produces fertilizer and hides.