
The Monster That Challenged the World (1957) on Netflix
Approved19571h 24mHorrorSci-Fi
An earthquake opens a crevice in California's Salton Sea, releasing prehistoric giant mollusks. Lt. Cmdr. John "Twill" Twillinger leads the rescue party sent to find a vanished patrol boat.
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- Netflix3.0/5
- IMDb5.7/103,703 votes
- Rotten Tomatoes67%
Trailer
Plot summary
Something in California's Salton Sea comes loose when an underwater earthquake splits the sea floor, letting prehistoric giant mollusks out. A Navy parachute training jump goes wrong when the patrol boat sent to collect the jumper is found empty and its crew gone. Lt. Cmdr. John "Twill" Twillinger takes another boat out and finds the craft coated in a strange slime, while the jumper's body floats up blackened and drained. He brings a sample to the base laboratory, where he works with Gail MacKenzie and Dr. Jess Rogers. Navy divers go into the water after a young couple disappear during a swim.
Cast
Tim Holtas Lt. Cmdr. John 'Twill' Twillinger
Audrey Daltonas Gail MacKenzie
Hans Conriedas Dr. Jess Rogers
Barbara Darrowas Jody Simms
Max Showalteras Dr. Tad Johns (as Casey Adams)
Harlan Wardeas Lt. Robert 'Clem' Clemens
Gordon Jonesas Sheriff Josh Peters
Mimi Gibsonas Sandy MacKenzie
Marjorie Stappas Connie Blake
Jody McCreaas Seaman Fred Johnson
Wallace Earlas Sally
- Dennis McCarthyas George Blake (lab assistant)
Did you know?!Facts and trivia about The Monster That Challenged the World (1957)
Can contain spoilers, watch the movie first.
- Actor Tim Holt had already retired from acting and came out of retirement to appear in The Monster That Challenged the World, as his co-star Audrey Dalton recalled.
- The close-up shots in The Monster That Challenged the World were made later in a tank filled with water and plastic seaweed rather than in open water.

























