Competitors strap in for the fall mud circuit in the gritty underground world of mud racing. The racing is wild, the rivalries are intense, and the party turns up when the sun goes down. With big money on the line, no one is holding back.

Racers gear up for the circuit's wildest event: the Rednecks with Paychecks Fall Mud Crawl. Bryce Sparks sends it to win his daughter a new UTV, Randi fights to overcome a traumatic accident with a victory, and two new drivers ignite a rivalry.

Bryce looks to defend his title against his nemesis, Josh -- but things quickly get out of hand, ending with a broken rig and a bruised ego. Hungry for a sponsor, AJ pushes his ATV to speeds of nearly 100mph.

At Arkansas's world-famous Greasy Bend Off-Road Park, rivals Bryce and Josh wager big money on the small tire bounty course. Larry calls up an old friend to help him turn his season around. AJ does whatever it takes to take down his top competition.

Larry and Bobby enter a wild trail race, using questionable tactics while chasing their first win. Bryce dresses to impress and risks it all on the ATV short course. Randi takes on Megan Rion and skimmer AJ Robertson in the Bounty Hole call-out races.

The Josh Carmon vs. Bryce Sparks rivalry is on a collision course as they line up for the final event of the fall mud circuit. AJ debuts the largest ATV in the world just in time to face Larry Oakes and Megan Rion in the season's nastiest bounty hole.