This movie's preamble explains the importance of salesmanship after the great depression The industrial revolution has created a life of modern convenience for America, and there are more products available than most people can fathom.
Stone is buying cattle cheap in Mexico, bringing them across the border without paying duty, changing the brands, and then selling them at a big profit.
A gang of urban street kids and a club of suburban would-be federal agents, at first rivals, join forces to rescue the father of one of the kids, the inventor of a super-explosive and its remote detonator, from the clutches of a band of foreign subversives call the "Flaming Torch Gang".
Cary Grant narrates, and appears at the end of, this public service announcement. The Will Rogers Memorial Hospital treats patients with tuberculosis and conducts research to find a cure.