

The most fantastic undersea odyssey ever filmed.
When an underwater ocean lab is lost in a earthquake, an advanced submarine is sent down to find it and encounters terrible danger.
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Cast
- Ben GazzaraCmdr. Adrian Blake
- Walter PidgeonDr. Samuel Andrews
- Ernest BorgnineChief Diver Don MacKay
- Yvette MimieuxDr. Leah Jansen
- Donnelly RhodesDiver Bob Cousins
- Chris WigginsCapt. Williams
- Michael J. ReynoldsDr. Hal Hamilton
- Mark WalkerDiver Dave Moulton
- Leslie CarlsonBrigs, Triton Radioman
- Stuart GillardDiver Phil Bradley
Crew
- Daniel PetrieDirector
- Jack DeWittWriter
- Harry MakinDirector of Photography
- Lalo SchifrinOriginal Music Composer
- Stan ColeEditor
- Sandy HowardProducer
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