Grieving over the sudden loss of their mother, The Lylas are unable to sing and struggle to keep their band intact. They decide to do something their mom was against in her honor.
Hugh Evans finds a broken rail switch that threatens to derail a train and stop crucial medical supplies from getting through to homesteaders, Clyde and Mary Lovel, and Roadmaster Bruce must shoot down a twenty-ton icicle before it hits a train.
Atz and Atz Lee swim their horses across a chilly lake to get to bull moose hunting grounds. Bad weather and feeling under the weather won't deter them from the prize. Eivin hunts clams while Eve collects wild mushrooms. Otto and Charlotte bury a friend.
Tia brings in reinforcements to rescue a dog from a dangerous part of New Orleans. Tania is left stunned when she becomes the center of attention at her boyfriend's birthday party.
Danielle goes barefoot for her laidback beachfront nuptials, while Antonia and her guests wear traditional African attire on her big day. Gina delights with a water ski show, while Kelly makes a big splash with cheesesteaks at her hubby planned reception.
It's week four and the season is already running off the rails. On the Olympic Peninsula, Gabe runs a hung-over greenhorn into the ground but Jason disagrees with Gabe's management style. In the swamp, Belinda is too hurt to log so she's brought in a new assistant who almost drowns Shelby's dream of rebuilding his logging empire. Up in Alaska, Mike Papac decides to shake things up and brings in a long time family friend to help in the rigging. The battle for river supremacy rages on in Florida as the Chapman team fights amongst themselves and the Dreadknots divide to conquer.
Brie becomes engaged. Nikki breaks up with John Cena following his refusal to have children. Eva Marie introduces her fiancé to her family with disastrous results.
Todd abandons gold and switches to diamond mining. In Alaska, Dustin gets stranded in the mountains during the worst electrical storm in twenty years. Parker's need for speed destroys his wash plant.
Stuck in Key West, Bernice and her crew scramble to locate their missing tow truck with the wrath of both Christie and Wanda looming overhead. Meanwhile, Robbie races against time to find Kosgrove's lost dog, and things take a turn for the weird between Eddie and his therapist.
The Robertsons perform a live nativity for their Church for Christmas, so the wives organize rehearsals to ensure that they pull off a great event. However, rehearsals get off to a bumpy start as the guys can't stop sharing their opinions. In between rehearsals, Willie and Jase struggle to get their wives the perfect Christmas gifts and they unenthusiastically take Jep's advice.
Bar expert Tom Powers heads to Corpus Christi, TX to help three servicemen on a quest to find the perfect location to open a sports bar.
Summer dredging season begins. The Pomrenkes have competition from a new megadredge crewed by Scott Meisterheim. Emily's first day as captain goes up in flames. Zeke has a run-in with the law. Steve R is first out, but his crew strands him on an iceberg.
The competition is heating up a quarter of the way through the season. Down in the Bayou, Shelby brings in a new assistant, but the logging gets put on hold when the Swamp Man finds that all his equipment has been sabotaged. In the Pacific Northwest, Joe tries to muscle his way through his mistakes but his shortcuts land him in hot water with the boss. In Washington, Gabe's greenhorns aren't living up their potential, and things get heated when Jason oversteps his boundaries and takes matters into his own hands. In Florida, the Dreadknots have their hands full with some surprise help on the boat, while Swilley fights for his place on the boat with the Chapman crew.
Joe, Sal, Murr and Q get eaten alive leading a business luncheon and trip over their own feet selling running shoes. Plus, Murr loses his Mommy and his dignity in a crowded retail store.
Texas is a hotbed of monster activity. The Lake Worth community is being terrorized by a hybrid man-goat; in Cuero Phylis Canion has proof of a Chupacabra; and in Brownsville a young couple is attacked by an aggressive Zombie soldier.