Finding himself one of Hollywood's film-makers blacklisted by the House Un-American Activities Committee he moved to Britain.

[3] The film was co-written by Cyril Hume, who'd contributed substantially to the "Tarzan" series back in its bigger budget MGM days.

Tarzan agrees, against his better judgement, to guide supposed British government agents Edwards and Rokov into the land of the Wazuri Tribe, to harvest uncut diamonds for national-defense purposes.

It transpires the "agents" are secretly criminals who intend to use the gems for their own sinister purposes.

[5] Variety wrote that the film was, "A series of unexciting jungle heroics are offered..."[6] Recent TV guides for re-run viewers say little more.