Safari Drums was the ninth entry in Monogram's "Bomba the Jungle Boy" series. Johnny Sheffield once more stars as Bomba, while his usual director Ford Beebe calls the shots. The villain is an avaricious guide (Douglas Kennedy) who has murdered a famed geologist. The killer is a member of a film-making unit that has come to Africa to lens a documentary. His motivation for the murder was a fortune in diamonds. Bomba disposes of the baddie by summoning aid from his animal friends. Ironically, this same solution was used in the like-vintage Tarzan and the She-Devil -- and as everybody knows, Johnny Sheffield used to play "Boy" in the Tarzan pictures.