A Columbia serial in 15 chapters (1945).
The first indication that this is another cheap-o cliffhanger serial of the era is that there is NO jungle to be seen... just the rocky, desert boulder sets used many times before.
A young woman searches for her scientist father (who was researching a miracle drug used by the natives) in a mysterious land controlled by the tribe of Arzecs (not a typo). Enemies of the heroes include Zara (Carol Hughes), the High Priestess of the god Rama, and the greedy blonde Cora Bell (Veda Ann Borg) who cares nothing about the miracle drug, but must get her hands on the cache of rare jewels thought to be held by the native tribe.
Cora and Zara come to a truce and secretly conspire to aid each other for their own benefit. Of course, each intends to double-cross the other, which finally comes out, and the two literally go for each other's throat in a rousing, legs-entwined catfight. The two roll off a precipice, landing on a bed of sharp spikes below (landing unseen), locked together in a mutual demise.