In the depths of Bog Lake, a fisherman's reckless use of dynamite awakens a monstrous creature, a green, bug-eyed mutant that had been dormant for centuries. As the beast begins to wreak havoc, killing and devouring anyone who crosses its path, a biologist named Ginny Glenn discovers its evolutionary origins. The local sheriff, determined to stop the creature, employs a range of methods to try and destroy the relentless monster.
Bog
In a remote swamp, a group of individuals make a shocking discovery: a prehistoric gill monster, which can only survive by feeding on the blood of human females.
