Polidoro is a naive farmer. Convinced by his daughter and son-in-law, he sells his farm to Agenor, a swindler and friend of his son-in-law. Through a trap, Polidoro travels to Bariloche while his farm is sold illicitly to third parties.
Inspector Carlos and his loyal companion, the friendly dog Lobo, fight crime while patrolling Brazil's highways in a Simca Chambord or a powerful Harley Davidson motorcycle.