The Secret of Lost Valley poster
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The Secret of Lost Valley

198056mMovieAdventureDramaFamily

While on a family outing, a boy, Adam, gets lost in the forest and discovers a wild boy there. Communicating by sign language, they become friends. When the wild boy is captured by scientists, Adam helps him escape.

DirectorVic Morrow
WritersPaul Golding·David Irving

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The Secret of Lost Valley was released on April 27, 1980 but we couldn't find it on any streaming service yet. Rights can change — try again later.

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Cast · Directed by Vic Morrow

GCGary Collins
Gary Collins
Ned Harkness
MMMary Ann Mobley
Mary Ann Mobley
Susan Harkness
BSBrad Savage
Brad Savage
Adam Harkness
EM
Eddie Marquez
Zane
JBJackson Bostwick
Jackson Bostwick
Cal
JLJohn Lupton
John Lupton
Detective
TSTom Simcox
Tom Simcox
Chief Ranger
BSBarry Sullivan
Barry Sullivan
Dr. Seldon
JAJames Almanzar
James Almanzar
Dave
DBDon Brodie
Don Brodie
Camper
DC
David Cadiente
A-Voh
DSDavid S. Cass Sr.
David S. Cass Sr.
Donnie

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More from Mary Ann Mobley · Co-star actress

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More from Vic Morrow · Director

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The Secret of Lost Valley — streaming FAQ

Which OTT platform streams The Secret of Lost Valley?

The Secret of Lost Valley isn't streaming anywhere in Philippines yet.

Is The Secret of Lost Valley on Netflix?

No, The Secret of Lost Valley is not on Netflix in Philippines as of September 2026.

Is The Secret of Lost Valley on Amazon Prime Video?

No, The Secret of Lost Valley isn't on Amazon Prime Video in Philippines right now.

Where can I watch The Secret of Lost Valley for free?

The Secret of Lost Valley isn't streaming in Philippines yet, so there's no way to watch it free at the moment.

What is the OTT release date for The Secret of Lost Valley?

The Secret of Lost Valley hasn't started streaming in Philippines yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around June 15, 1980. This is a prediction, not a confirmed date.