Tarzan in Istanbul (1952)

On their way to Turkey, a young couple and their little son disappear into the wild jungles of Africa. Years later, the husband's businessman brother, Cemil, enlists the help of journalist Tekin to lead an expedition to the peril-laden Death Mountain and get to the bottom of the mystery that involves a hand-written message and a treasure. There, inescapable dangers threaten the team of adventurers, including hungry lions, mighty crocodiles, and ferocious indigenous tribes. However, someone is watching their every move. Could the invisible protector be Tarzan, the long-lost nephew of Cemil?