Jungle Devil

S2 E14: "Jungle Devil" finds Clark Kent played by George Reeves; Jimmy, performed by Jack Larson and Lois, enacted by Noel Neill, seeking and finding a lost scientist only to be captured by hostile natives. Superman's super powers finally extricate the group from their predicament, but Superman must wrestle a giant gorilla and produce a diamond from a lump of coal before the chief is convinced.