Tarzan Finds a Son carries more credulity and believable jungle adventure than the long list of preceding Tarzan features.
Tarzan and the Missus save a baby in plane that crashes in the jungle. Tarzan is proudly teaching his accepted son the jungle lore, when a searching party arrives to establish death of the baby, who has come into heavy inheritance. Ian Hunter and Frieda Inescort are out to grab the inheritance for themselves, and start plotting death of Tarzan and snatch of the youngster.
Johnny Weissmuller athletically runs and swims through as the ape-man in okay fashion. Maureen O’Sullivan is the jungle wife, and gets in some good dramatic work in battling against herself to give up the youngster. Tarzan’s boy, little Johnnie Sheffield, does nicely and performs his athletic chores satisfactorily.