Tarzan's cousin Oliver Greystoke wants to pay Tarzan (Lex Barker) a
visit, mainly to persuade Tarzan to lead him to a diamond mine, since the
stones are to be used in the British Cold War efforts. But before he even
reaches Tarzan, he is killed by Russian agent Rokov (Charles Korvin), and
Edwards (Patric Knowles), a British traitor takes his place - which
shouldn't pose any problems since Tarzan has never seen Oliver. The only
problem is that Edwards carries Oliver's passport with him, which would
reveal his treachery and which seems to be getting into the wrong hands
almost permanently. Good thing though that noone ever opens the passport
to look at the picture (until very late in the movie) ...
Anyways, when Tarzan hears about Edwards' and Rokov's plans to find the
mine, which is in possession of an extremely savage tribe, he at first
thinks little of it, but Jane (Dorothy Hart) persuades him to help the
British war effort (for which she of course thinks the diamonds are
intended), and so the very next day, Tarzan, Jane, Joey (Tommy Carlton) -
Tarzan and Jane's new Boy -, Rokov and Edwards all head off to the
territory of the savage tribe - which is so savage in fact that even the
cannibal tribe next door fears it -, and before you know it they are taken
captives by the savages. But Tarzan's father was a friend of the tribe,
and Tarzan is soon of to find proof of that, which is the only way the
savages would set the others free.
While Tarzan's away, Jane finds out that Edwards isn't really Oliver,
so Rokov uses a few of his magic tricks (he knows quite a few of them) to
make the tribe's high priest take him and Edwards to the mine, where he
kills the high priest, and he and Edwards collect whatever amount of
diamonds they can carry and head off to an improvised landing strip nearby
where they are to be picked up by a plane. But on their escape, Rokov
decides to feed Edwards, who is by now plagued by guilt over his treason,
to the lions. Then he bumps into Tarzan and somehow gets him caught in a
landslide, effectively putting him out of action.
Jane meanwhile starts to worry, so she tells little Joey to go and get
Tarzan (quite a bit of a task considering he's a mere kid), and Joey finds
Tarzan in no time caught under tons of rock - but when Joey tells Tarzan
Jane is in danger, Tarzan has no problems at all removing the rocks from
his chest, then he catches up with Rokov, throws him into the lion pit in
which Edwards was also killed, and returns to the native village with the
diamonds and with the proof that his father was actually the natives'
friend. And Jane, who was already about to be sacrificed, is released at
And using Rokov's radio, Tarzan's chimp Cheetah (!) makes sure Rokov's
escape plane crashes ...
Very routine Tarzan adventure of minor importance that
unfortunately introduces a new kid-character into the series. Good thing
the character was not picked up in the next film, Tarzan and the
She-Devil. On the plus side, Dorothy Hart makes the best, spunkiest
Jane in years - but she also woulndn't return for the next film.