Superman: Jungle Drums

Lois Lane's plane is shot down over Africa and she's captured by a German force occupying a jungle temple, where they use the natives' drums to signal strikes on Allied convoys. Superman follows her trail and turns the drums' own warning system against the occupiers. The fifteenth of the Paramount Superman cartoons, made by Famous Studios after the Fleischer brothers' departure, and the series' most direct piece of wartime propaganda. It is in the public domain through non-renewal.