Jane, who is away nursing troops in war-torn Europe, sends a letter to Tarzan (Johnny Weissmuller) requesting some of his amazing healing jungle juice, which she believes will help cure soldiers who have contracted tropical diseases.In order to obtain the plants necessary for the marvellous medicine, Tarzan, Boy (Johnny Sheffield) and Cheetah must travel beyond the desert town of Birherari to a perilous patch of jungle full of bizarre and deadly creatures. During their journey, the threesome team up with fast talking and feisty magician Connie Bryce (Nancy Kelly) who is on a covert mission to deliver a message to Prince Saleem of Birherari, warning him that his father's business associate Paul Hendrix (Otto Kruger) has been secretly plotting to take over the country by force.A change of scenery injected a little life back into the Tarzan series when the ape-man went to New York, but here the new locale doesn't work so well: seemingly influenced by his arid and barren surroundings, Wilhelm Thiele's direction for his desert based action—which takes up the majority of the running time—is pretty dry and lifeless, and the film only flourishes when the movie finally moves to the lush jungle setting. Here, we are treated some of the most enjoyably daft moments of the series so far, with the brave ape man and his pals confronting prehistoric creatures (real lizards with 'sails' glued to their backs), a man eating plant, and a massive, thoroughly unconvincing spider that traps Boy in its over-sized web (made from rope); it's just a shame that the good stuff is so brief, and that it's such an arduous trek to get there.I rate Tarzan's Desert Mystery a rather disappointing 5 out of 10 (the hilarious shonky spider almost earned the film another point, but Connie's continuous use of irritating '40s slang stopped me from being so generous).

Tarzan's Desert Mystery (1943) ** (out of 4) Jane, who once again sends Tarzan a letter saying she isn't coming home, also asks her boyfriend to get a secret formula that can cure troops fighting in the war. Tarzan, Boy and Cheetah set out to do this but end up fighting Arabs. I found it incredibly difficult to stay awake while watching this film and it took several viewings to be able to do so. I thought the first forty-minutes of this thing were deadly dull and lacked any nice comedy or action. The female lead also wasn't very interesting, which hurt matters. The film eventually picks up at the end when Tarzan must enter a mysterious jungle full of living vines, prehistoric creatures and a huge spider. If only the entire film had taken place here. This is the first Tarzan I've actually been disappointed in to the point where I probably won't watch it again.

TARZAN'S DESERT MYSTERY (RKO Radio, 1943), directed by Wilhelm Thiele, the eighth installment to the long running adventure series starring Johnny Weissmuller as the jungle hero, the second under the RKO Radio banner, and the only time during Weissmuller's 16 years in the titled role to have two releases in the same year. As with TARZAN TRIUMPHS (1943), his mate, Jane, is away (as explained in this segment through the reading of a letter that she away in England helping out in the war effort acting as nurse to the wounded soldiers), leaving her jungle warlord husband to remain behind and look after their young son, Boy (Johnny Sheffield) and their chimpanzee pet, Cheetah. Since this is war time, the screenwriters break away from the traditional intrusion of villainous white hunters or angry natives by having Tarzan matching wits with the Nazis once again. Unlike TARZAN TRIUMPHS, the Nazis take second precedence to what Tarzan is to encounter in his latest caper. Before a new adventure begins for both Tarzan and Boy, the story opens with an airplane flying over Tarzan's destination by which the co-pilot is seen throwing down a rock with an attached letter coming down on a miniature parachute. It is an airmail letter from Jane, which is opened and read to Tarzan by Boy. The letter has Jane asking Tarzan to hunt for giant carnivorous plants (plants with malaria serum), which can be found in the jungle on the other side of the desert, and have it sent to her in order to offer this fever medicine to the soldiers. Although it's written for Boy to remain behind, the young lad manages by getting his way with Tarzan, and, along with Cheetah, get to accompany him. While crossing the desert, Tarzan rescues a striped stallion from being whipped by a Karl Strader (Joseph Sawyer), sending the villain away and freeing the horse. The ever grateful animal accompanies Tarzan and Boy on their expedition. Later, Tarzan comes to the aid of Connie Bryce (Nancy Kelly), a lady magician, stranded in an Arab city following a North African USO tour. Because of her attempt to prevent the Sheik (Lloyd Corrigan) from an assassination attempt, Paul Heinrich, alias Hendrix, a Nazi leader (Otto Kruger), arranges for her to be accused of killing Prince Salam (Robert Lowery), and sentenced to die by hanging. Tarzan, imprisoned on the charges of stealing the stallion, breaks jail to save Connie. Afterwards, the trio face dangers in the jungle consisting of prehistoric creatures where Tarzan's to locate the carnivorous plants for Jane. Suspense builds when the Nazis are not far behind, forcing Connie and Boy to seek refuge in a cave. While roaming about, Boy finds himself trapped like a fly as while standing helplessly with his back glued against a gigantic spider web and arms stuck in an outstretched position, attracting the attention of the huge spider, slowly approaching towards his latest prey. Connie tries helping Boy out of this trap, but to no avail. As for Tarzan somewhere in the jungle, he has troubles of his own while entrapped inside a man-eating plant with no way of escaping.TARZAN'S DESERT MYSTERY, which plays like a Saturday matinée chaptered serial, containing villains, prehistoric creatures, rioting Arabs, a giant spider, and enough suspense in this slightly tight 70 minutes to certainly not disappoint any juvenile crowd. Edgar Rice Burrough's jungle hero continues to play the center of attention, and while this film actually appears better than it should have been, considering the modest budget, absence of the Jane character and contrived yarn, the scriptwriters have placed Tarzan into bizarre situations left to their own imagination. Obviously filmed in an indoor set, it would be questionable to find Tarzan and Boy walking through the hot desert or being exposed in the great outdoors without any signs of sunburn or tan on themselves. The supporting players consists of Frank Puglia (The Arab Dignitary); George J. Lewis (Hassan); and Nestor Paiva (The Prison Guard). Nancy Kelly, substituting for the Jane character, as once played in the MGM productions by Maureen O'Sullivan, makes an acceptable heroine; and Otto Kruger performs his task well as the nasty Nazi villain. The gigantic spider web scene, possibly the most talked about and memorable sequence in the entire movie, is not for the squeamish, especially when a villain gets caught onto the web and becomes a hardy meal for the spider. Naturally played for thrill or shock value at the time, today, this scene looks very artificial. While Tarzan finds himself encountering with prehistoric creatures (reminiscent to RKO's 1933 classic KING KONG) and man-eating plants instead of the usual hostile natives and wrestling crocodiles, this does stand apart from the previous efforts, thus, making it more acceptable as part of the horror genre.After many years as being aired on commercial television either on the late night hours or mid afternoon weekend showings, TARZAN'S DESERT MYSTERY finally reached its new destination of cable television on American Movie Classics where it found a new audience (1997-2000) and Turner Classic Movies (TCM premiere: May 21, 2011). TARZAN'S DESERT MYSTERY and the remaining five Weissmuller/Tarzan adventures from RKO Radio, have never been distributed to video cassette, but did make it to DVD around 2009. Next swing vine adventure: TARZAN AND THE AMAZONS (1945). (**1/2)

Tarzan this time has to deal with scheming foreign nazis who are plotting against a local Sheik to takeover his land. They manage to have Tarzan put in jail and try to get his lady friend (as in only a friend) hanged. Finally Tarzan ends up in a mysterious jungle with some rather familiar slurpasaurs as well as giant venus flytraps and a giant spider. This Tarzan mixes in lost world elements which really don't work as well as the earlier Tarzan adventure. Also one really misses the lack of Jane's presence on screen. Sometimes enjoyable, sometimes not so much so.