Deep in the Louisiana Bayou, Shelby the Swamp Man is back in action, and this time he's on a special mission. This job is about more than just cashing in. Shelby's client needs top quality logs to build high-end furniture that will raise money for a local charity.

After stumbling upon a rare historical artifact, Shelby forms an unlikely alliance with Professor Sam Hyde of Southeastern Louisiana University, when they realize they are the perfect team to discover the lost history of the Swamp.

The already shorthanded Rygaard crew fights Mother Nature as temperatures climb and a massive forest fire burns just over the mountain. Joe is still reeling from his injury, and what should be easiest site of the job could already be too much for the Papac crew.

In Washington, production's soaring with newest generation of Rygaard on the job, but with an ominous blood sun in the sky the day looks ripe for disaster. In Wyoming, David Zitterkopf is back in action with his son Levi to take on their biggest ever job.

Rygaard Logging has been behind the eight ball all season, but when the crew gets surprise visit from logging legend Craig Rygaard, it's game on.

On Washington's Olympic Peninsula, Rygaard Logging is fighting to get back on track with the help of patriarch Craig Rygaard. But it's Craig's way or the highway, and his return to the mountain is rubbing some of the crew the wrong way.

In Washington, Gabe Rygaard pushes his crew to breaking point. Meanwhile on the Mississippi, Delta Gary and Eddie blow up their business to cash in on green gold. Over in the bayou, the Swampman plays demolition derby to help keep the community safe, while in Wyoming one wrong step by David Zitterkopf could see his family empire fall to pieces. In Florida, a mutiny is underway among the Chapman crew.

As Papac Alaska pushes deeper into their seven thousand acre site, Joe and Coatsy hike out into the harsh wilderness to devise a plan of attack for the next section of this massive project. Meanwhile in Washington, Rygaard Logging is struggling to get the wood out.

In the Pacific Northwest, the Papac crew is moving on to the most remote and dangerous site of their season. On the St Johns River, the money's drying up for Greg Chapman and his crew is seeing red, so they're on a desperate mission to score big and get back in the black.

In Louisiana, there's a storm brewing over the Swamp Man and it's threatening to wash away his hopes of filling a massive order. In Washington, Gabe deals with the aftermath of Aiden's mutiny last week, and the burden of finishing the job falls on the shorthanded crew's shoulders. Meanwhile in Florida, the Chapman crew's behind the eight ball after they burned through their money chasing the Lost Logging Train, but a grizzly discovery could put things in perspective.

With only two weeks left in the season the Ax Men are sprinting to the finish line. In Washington, all three generation of Rygaard loggers are back on site fighting to regain the King of the Mountain crown. Meanwhile title-holders Papac Alaska Logging is moving into their final section--the Mother Lode

The battle for King of the Mountain all comes down to this. Up in Alaska, Papac Logging is barely holding onto their lead, and with the skyline down, their hopes of a three-peat are fading fast. Down in Washington, it's going to take all three generations of Rygaards to work as a team if they're gonna reclaim the title, but can they set their differences aside? In Louisiana, Shelby Stanga's under the gun, but with a secret map to a possible stash of sunken logs, he'll have to burn the midnight oil to deliver on time.