The tenth of Columbia's "Jungle Jim" series, Savage Mutiny finds Jim (Johnny Weissmuller) working on behalf of the US government. Jim must evacuate a tiny African island that is to be used for atomic testing. Scurrilous Communist agents hope to thwart America's defense program, and also stir up anti-US propaganda, by encouraging the natives to stay put. By the time Jungle Jim gets through with them, the spies would rather be dead than Red. Much of the footage of Savage Mutiny--and a good portion of the plot--would be re-used on an episode of TV's Captain Midnight.