A horrifying hybrid of genetic science and nature has taken over the Louisiana bayou, leaving terror in its wake! In the heat of the summer, what began as an day of boating and bikinis changes drastically when a school of genetically enhanced snakehead fish finds their way into Black Briar Swamp.

In the post–World War II South, two families are pitted against a barbaric social hierarchy and an unrelenting landscape as they simultaneously fight the battle at home and the battle abroad.