A scientific expedition happens to discover that gold exists on Tarzan's escarpment. The villainous Medford and Vandermeer kidnap Jane and Boy to extort from Tarzan the location of the gold.
Tarzan's Secret Treasure is a 1941 American adventure film directed by Richard Thorpe and starring Johnny Weissmuller, Maureen O'Sullivan and Johnny Sheffield. Based on the Tarzan character created by Edgar Rice Burroughs, it is the fifth in the MGM Tarzan series to feature Weissmuller and O'Sullivan. Original prints of the film were processed in sepiatone.