The "Siren II," an experimental submarine with a highly experienced crew, is dispatched to find out what happened to the "Siren I," which unexpectedly vanished into an undersea fissure. When they start discovering items that shouldn't be there, things start to go awry...
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The "Siren II," an experimental submarine with a highly experienced crew, is dispatched to find out what happened to the "Siren I," which unexpectedly vanished into an undersea fissure. When they start discovering items that shouldn't be there, things start to go awry...
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