The first U.S. spaceship to Venus, the XY-21, crashes into the Mediterranean sea off the coast of Sicily, Italy as fishermen watch. They row to the spacecraft, enter…
A nuclear submarine on maneuvers in the Pacific Ocean, captained by Commander Pete Mathews (Kenneth Tobey), comes into contact with a massive sonar return. The commander…
In 1868, rumors spread of a sea monster which attacks ships in the Pacific Ocean and disrupt shipping lanes. Professor Aronnax and his assistant, Conseil, board a U.S.…
American tycoon George Harrison, his beautiful wife, Mona, and deep-sea diver Jeff Clark are off the coast of Africa hoping to salvage a fortune in diamonds at the…
Dominic Quesada and Johnny Gray, two SCUBA divers searching for sunken treasure off the coast of Cuba, think they\'ve hit the jackpot when they find a 17th century ship…
In 1841, a sailor named Ishmael wanders to the New England town of New Bedford, Massachusetts to sign on a whaling ship. In the inn where he is staying for the night, he…
In the spring of 1941, Al Woods quits an Oklahoma college to join the armed forces after a quarrel with his co-ed sweetheart, Jo. He joins the Coast Guard, partly by…
Far north of the Arctic Circle, a nuclear bomb test, dubbed "Operation Experiment", is conducted. Prophetically, right after the blast, physicist Thomas Nesbitt muses…
Peter Willems (Trevor Howard), a selfish and ambitious man, is accused of stealing in his position as manager of a shipping port operation near Singapore. After he is…
New Mexico State Police Sgt. Ben Peterson and Trooper Ed Blackburn discover a little girl wandering the desert, near Alamogordo, in shock and in a catatonic state. They…
When the Japanese freighter Eiko-maru is destroyed near Odo Island, another ship—the Bingo-maru—is sent to investigate, only to meet the same fate with few survivors. A…
In the South Seas, a volcano explodes, eventually causing North Pole icebergs to shift. Below the melting polar ice caps, a 200-foot-long praying mantis, trapped in the…
Captain Thorne Sherman (James Best) and first mate Rook Griswold ("Judge" Henry Dupree) deliver supplies by boat to a group on a remote island. The group, consisting of…
Scientist Steve Karnes delivers a speech to a British scientific society, led by Professor James Bickford, about the dangers to marine life posed by nuclear testing.…