While watching Tarzan Finds A Son today it occurred to me that both this film and Tarzan's New York Adventure were about the same thing, custodial interference. The only difference is in the setting where the question is raised. In this film the issue is decided on Tarzan's home turf in the jungle. And as such he's got a definite home field advantage.
The film begins with Morton Lowry, Laraine Day and pilot Gavin Muir going down in a light plane crash in the jungle. The chimpanzees find their infant son who survived and bring him to Tarzan where Johnny Weissmuller and Maureen O'Sullivan raise the boy and name him such.
Five years later guide Henry Wilcoxon lead the Lancings, Henry Stephenson, Ian Hunter, and Frieda Inescourt into the jungle looking for a trace of their relatives. That leads O'Sullivan into a conflict with Weissmuller.
Much as she loves life with the Lord of the Jungle, O'Sullivan does see certain advantages to civilization that their 'son' now played by young Johnny Sheffield might have. Of course all the relatives motives aren't pure which leads to the inevitable conflict.
In the jungle Tarzan who's on a first name basis with every animal can call on both apes and elephants for assistance. That he does in a nice slam bang climax where both simian and pachyderm power are brought to bear.
Louis B. Mayer must have always thanked God that the shooting of Trader Horn in Africa left him with so much background jungle footage to use and not too many times over. The footage is well integrated into this story.
Tarzan Finds A Son has aged well and remains watchable.
