Episode is loaded with shots clipped from hunt films and burdened with forced situations and yard after yard of Buster Crabbe doing his daily dozen in the jungle gym. Same old chimp whispers secrets in his ear and the same old lion tries to put a little spirit into a man-and-lion wrestle that has become boresome to him. This time the lion has two bouts with Crabbe and a prelim with one of the heavies, all inside of 60 minutes.
Crabbe also has a struggle with a crocodile, this sequence being hurt by the fact that a prop animal is towed in the scenes in which the girl is shown. Crabbe does his rough and tumble with a real croc.
Plot concerns Tarzan’s interest in the daughter, Mary (Jacqueline Wells), of a scientist, Dr. Brooks (E. Alyn Warren), who is looking for the people of Zar and is made prisoner. His safari is guided by a couple of scoundrels who are after the emeralds which tradition ascribes to Zar.
Action ends rather abruptly with Tarzan admiring the girl in his cave. For all the audience knows, they set up light housekeeping there. [Pic was designed as a feature-length first chapter of a serial, to be followed by eight two-reelers, though this was not explained at the New York public showing the reviewer attended.]
Story is haltingly told in poor dialog and no one in the cast gets a chance with the material at hand.