Plot

A genetically-altered fish wreaks havoc on a small fishing town.

When the body of a man is found completely destroyed in the swamps in Louisiana, the medical investigator Sam Rivers is assigned to investigate the murder. He travels with the biologist Mary Callahan to the location where the victim lived in a floating house and he meets his family and friends. They find that Chinese snake-heads genetically engineered that belong to a wealthy hunter are attacking and killing the locals. While the group fights to survive, the hunter Jeff arrives with his team to hunt the predators.—Claudio Carvalho, Rio de Janeiro, Brazil

Something is lurking in the murky waters of Louisiana's swamplands, killing the unsuspecting locals, and medical examiner, Sam Rivers, and biologist, Mary Callahan, embark on a mission to shed light on the mystery. But, before long, another devastating attack leaves the team of investigators trapped in the hostile environment, fighting to survive the relentless onslaught of the methodical adversary. Now, blood stains the marshes. What's terrorising the bayou?—Nick Riganas

A series of brutal attacks in the Louisiana swamps leave the local police mystified. Sending in a coroner originally from the area and a biologist to investigate, they learn that a group of genetically engineered Chinese snakeheads are responsible. The fish chase the investigators upstream, where the fish trap them on a houseboat with several other locals. Meanwhile, a group of big-game hunters track down the fish. It all boils down to a fight for survival with the voracious predators slowly picking off the humans.—slayrrr666