A record-breaking heatwave consumes the bayou. Ronnie and Ashley try to run 100 lines to take advantage of a feeding frenzy. Willie and his dad, Junior, captain separate boats to leapfrog lines and finish faster. Don invents a slow drip-device to prevent Jacob's bait from drying out. Joey and Zak hunt along the banks of a popular watering hole for thirsty cattle.

Troy and Pickle bring a special guest onboard. Joey and Zak risk it all on the hunt for the biggest alligator Joey Edgar has ever seen. Ronnie and Ashley face their darkest fears in an area known as The Cemetery. Liz and Destin face high water and a low bridge in their quest for monsters.