The Beasts of Tarzan

After marrying Jane at the end of The Return of Tarzan, and claiming his birthright as Lord of Greystoke, our former ape-man finds his infant son has been kidnapped in London by old enemies. Following an anonymous call, Tarzan falls into his enemies' trap and finds himself once more exiled in the wild, this time with the threat hanging over him that his young son will be raised by cannibals.