As the season opens, the King of the Swamp, Troy Landry, finds himself going head-to-head with Mother Nature. The water in the basin is higher than it's ever been, pushing the monsters into inaccessible back ponds and woods.
After his worst start to alligator season ever, a desperate Troy does the unthinkable, bringing in outside help over the objections of his sons Jacob and Chase and his brother, Guy. The Edgar family, a Creole family from the south, has come to the rescue but can they save Troy's season from disaster? Or will their presence divide the Landry's?
Despite his worst start ever, The King of the Swamp is determined to fill his 500- plus tags this year. Armed with the help of fellow swamper Daniel Edgar's family, he takes on the high water and cold weather in true Cajun fashion. Meanwhile, Frenchy Crochet and Gee Singleton's best laid plans literally blow up in their face.
When Daniel Edgar's boys show up late and hung-over, the party quickly comes to an end. Troy does battle with a poacher, as Willie risks it all to get the biggest gator he's ever hooked. Over in Hammond, Ron pushes to get the puppy a second chance with Bruce.
Troy uses an old family secret to change his luck. R.J. and Jay Paul square off with the Edgar family as they hunt the same territory, and Glen Guist practices "Swamp Medicine" and pays tribute to his brother, Mitch.
Troy and his family push their season to the limit when they gamble on a new territory. R.J. goes solo and comes face to face with the truth. Bruce puts Ron's puppy to the test and Frenchy and Gee head to hog heaven.
Troy answers the code of the swamp and helps out an old-timer with his lines. Jacob's brother, Chase, is a no-show, putting the Landry's behind. Ron's puppy, Gunnar, finally gets his chance to prove himself and Dorien faces his biggest challenge yet.
Troy and Guy race to fill tags as the end of the season looms near. Jacob and Chase have a surprise encounter fishing in their backyard. The Edgars hit a cold streak as their lines come up empty and Bruce and Ron put puppy Gunnar to the ultimate test.
The Landry's race to tag out on the last day of the season, but they've got company, as R.J. and Jay Paul invade their territory looking to tag out themselves. And the Edgars attempt to catch their last haul of gators...with a little help from their friends.