Synopsis: Lieutenant John Twillinger thinks he's seen it all - until an earthquake under the Salton Sea unearths a horrifying nest of prehistoric killer crustaceans. Giant, terrifying and with a hunger for human flesh, the beasts begin feeding on the locals, unleashing a shocking reign of murderous mollusk mayhem. Can Twillinger do anything to stop their spread? Or will the human race be forever left in the snails' slimy wake?
![Monster That Challenged the World, The [Blu-Ray] Cover](images/dvdcover/91596.jpg "Monster That Challenged the World, The [Blu-Ray] Cover")
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