Season 3 kicks off with the opening of a 30-day alligator-hunting cycle in Louisiana. Troy reunites with partner Clint and runs a second boat with son Jacob; Liz Cavalier helms her own boat; and R.J. Molinere has a new secret weapon and sets out to prove he's king of the swamp.
Gator fever hits a peak in Southern Louisiana, so Troy directs his special boat to a hot spot, but he soon faces an unforeseen obstacle. Meanwhile, Junior Edwards and his son pursue a cagey beast; Liz and Kristie hit the canals to track a terrorizing monster; R.J. and Jay Paul happen upon outsiders who are violating swamp rules.
Troy faces off against a behemoth gator that's been feeding perilously close to his home; R.J. and his son take part in a tribal ceremony to prepare for gator battle; Liz and Kristi encounter a brazen gator; and the Guist brothers search for lumber.
R.J. and Jay Paul trek to a location ominously known as the Hive; Jacob attempts to catch a monster gator's offspring; Junior tries to keep his sons focused; and Glenn and Mitchell go hunting on the Conway Bayou.
The hunters are forced to adjust their plans in the aftermath of a tropical storm; R.J. and Jay Paul search for gators inland; Junior and Malcolm explore an area that's normally inaccessible; and Glenn and Mitchell hunt for dinner in the swamp.
Troy and Clint venture into a treacherous section of swamp; Joe and Tommy explore a flooded drainage ditch that's been inaccessible for years; and Willie and Randy are given a gator quota to fill. Also: R.J.'s 50th birthday is celebrated.
Joe follows Tommy's lead to new hunting territory; Troy must rush to fill his remaining tags; R.J. and Jay run out of fresh hunting ground; and Liz and Kristi search for gators in Liz's father's favorite hunting spot.