In the late 1960s, merchant ships, scientific research teams, and military submarines from various countries were bustling in the Arctic region. However, a series of mysterious incidents occurred in the Arctic, with approximately 8 ships and 7 submarines disappearing under strange circumstances, leaving the fates of those on board unknown. This caused a sensation worldwide, prompting the high-ranking officials of the Pentagon in the United States to summon Captain Dan Redworth of the "Tiger Shark" nuclear submarine (played by Dick Foran) along with a group of technological elites, sending them to the Arctic to investigate. Their journey was long and arduous, and the crew members were in a low mood without knowing the purpose of the mission. As they approached the Antarctic Circle, the "Tiger Shark" detected an unidentified object in the waters ahead, which Captain Redworth and his team identified as the UFO responsible for the incidents. They chased it down, engaged in a pursuit with the UFO. Ultimately, they encountered a group of alien monsters with a giant eye and countless tentacles. A fierce battle with a significant power disparity was inevitable...
Sci-Fi
Nuclear submarine
actor： Arthur Franz, Dick Fuller, Brett Halsey, Tom Conway
director：Spencer, Gordon, Bennet
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type：Sci-Fi
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status：main feature
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updated：2025-06-04
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region：United States
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year：1959
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language：English
plot：In the late 1960s, merchant ships, scientific research teams, military vessels, ...more
