Troy and his armada take an overnight trip to the legendary hunting ground, Cow Island. Joey and Zak go on a special mission to protect the Edgar's hometown while Daniel takes matters into his own hands to deal with a poacher. A bad "fish kill" means easy eating for the gators, forcing RJ and Jay Paul to snipe them from long range.
The Swampers brave eerie waters to hunt creatures after dark. In a time honored tradition, Jacob and Holden pursue frightening gar fish. Ashley and Ronnie battle flying carp in Mississippi while catching elusive gators at night. Frenchy and Gee go frogging for a tasty delicacy. On an overnight bow fishing adventure RJ shows Jay Paul that he's still the hunter to beat. Daniel and Joey show Zak how shrimpin' is done in the Gulf.
Ronnie wins extra tags in a poker game that he and Ashley are eager to fill and cash in. RJ and Jay Paul chase a bold beast encroaching on their family land, while Troy plans a nocturnal stakeout to catch the mysterious man poaching his lines. Joey and Zak stalk a vicious cannibal that is terrorizing other gators in their territory.
As a major storm rages in the Gulf Coast, Troy, Terral, Jacob and Dusty race to run their lines before the storm sinks their gators. Meanwhile, severe lightning forces Ronnie and Ashley to take emergency shelter, while a broken water pump threatens to sink Frenchy and Gee in the middle of a thunderstorm.