A seven-reel feature version of the serial was later released in South America under the title Bimi.

Robert Grant, framed for a coup in the Indian country of Ranjapur, escapes from prison to Africa in search of the real villains.

Here he meets Sheik Mustapha (Boris Karloff), who has evidence to clear him and the location of a secret diamond mine.

The stars of King of the Wild were originally intended to be Harry Carey and Edwina Booth, but filming on the MGM film Trader Horn (1931) went over-schedule, forcing Mascot to recast the serial with Walter Miller and Nora Lane instead.

He later went after explorer Percy Fawcett, who had disappeared in Brazil several years earlier.