The first of the RKO Tarzans and quite an enjoyable entry. Tarzan (Johnny Weissmuller) finds himself involved in battling the Nazis when they invade the peaceful nearby village of Palandria and try to make slaves out of its citizens. For this film, Tarzan's partner Jane is absent while doing business in London, so we have the gorgeous Frances Gifford subbing for the feminine interest of the story as a princess of Palandria who makes contact with Tarzan and his son Boy (Johnny Sheffield). Gifford would have made a stunning and perfect Jane. A fun, fast, and entertaining installment with an occasional display of violence, with good actors like Sig Ruman, Stanley Ridges, and Philip Van Zandt playing the Nazi bad guys.

• Jane's absence was explained in a letter saying that she's visiting relatives in England. Maureen O'Sullivan was sick of playing Jane, but her absence probably had more to do with the fact that the franchise had switched from MGM to RKO, and O'Sullivan was a Metro contract player.