In a dark Louisiana swamp, a group of researchers encountered a mysterious creature known as the "Jack O Lantern Dog". Despite its terrifying appearance, the beast was captured and taken to a secret lab for study. However, during an experiment gone wrong, the dog turned on the researchers, leaving them defeated and wounded. The crowd watched in horror as the monster dog forced its way into the lab, leaving a trail of destruction. With no other option, the survivors were forced to seek refuge in the swamp's murky waters, hoping to evade the creature's relentless pursuit.