A private detective foils the plans of villains attempting to take over Panamanian oilfields when he hides a valuable map in plain sight.

Marvin Hayden returns to find his ranch is about to be sold at auction and the Hayden Jorth feud still going strong. Carson wants the Hayden ranch and tries to kill Hayden. When he fails he kills Chick Jorth with a rock. As Hayden does not carry a gun and the two had argued earlier, Hayden is arrested for the murder. With Hayden in jail, his friends Chito, Ginger, and his Lawyer Gardner now go to work to find the murderer.