After hearing the story of Lockjaw, the group of friends becomes intrigued and decides to visit the location where the creature is said to reside – a remote swamp in Louisiana. However, their joyride takes a dark turn as they encounter a group of locals who are fiercely protective of their territory and warn them to turn back. Ignoring the warnings, the group ventures deeper into the swamp, only to find themselves in grave danger as they come face to face with Lockjaw. The creature is not just a myth but a ferocious, bloodthirsty monster that will stop at nothing to protect its territory. As they fight for their survival, the group realizes that they may have bitten off more than they can handle.