Todd and Jack struggle alone at McKinnon creek, working with just their old 400 excavator and a left behind loader, while Thurber transports their wash plant from Guyana to the claim. Tony nearly crushes his son beneath a conveyor, and Parker is forced to mine a swamp.

Parker fights with the crew about running at night; Tony twists an important steel frame on the dredge; Todd, Jack and Thurber work on their first clean up.

Todd is forced to sell his gold to get the mining equipment he needs.

Dave agrees to work with the Hoffman crew under a new agreement, where he's an equal owner, and brings in 6 new massive machines. Tony has a near miss while removing the heaviest part of the dredge and Parker fights with Rick when he opens up untested ground.

Dave and Todd clash over how to mine frozen ground. Tony's daughter Monica gets stuck in a bad situation. Parker's hopes are drowned by multiple issues including a flooded cut.

Todd needs to find a 100 ounce down payment to make a big purchase. Parker spends a quarter of a million dollars on new equipment. Tony attempts to remove the wheelhouse from his 75 year old gold dredge.

Parker goes for his best clean-up so far this season, Tony attempts to rip the trommel out of his 75 year old gold dredge and the Hoffman crew is stunned by the death of a former crew member.

The Hoffmans overcome a lack of water to get a monster clean up. Tony finally gets his dredge on the way to its new home in Eureka Creek. Parker gets the biggest gold clean up in Gold Rush history.

This special explores the life of 94 year old mining legend John Schnabel. From the Kansas dustbowl, to his career on an Alaskan gold mine, Grandpa John continues to inspire his grandson Parker to follow in his footsteps.

Parker's car is totaled in a head-on collision; rock trucks go head-to-head on a dangerous haul road; Tony starts to rebuild his dredge.

Parker and his grandfather hunt for a new Klondike claim; Tony's operation stalls when the dredge crew runs out of bolts; Todd's crew discards paydirt.

Todd and Dave disagree about how to mine, but reap large rewards; Tony and Parker go to war over bedrock gold; Minnie steals Tony's dredge crew.

Logan has an accident with the rock truck; the Hoffman crew aims for a huge weigh-in; Parker finds his new cut frozen solid; Tony installs the heaviest part of his dredge.

Todd and Dave get bulldozers stuck in deep mud; Parker breaks an excavator; Parker's crew struggles with frozen ground; Tony rushes to finish the dredge.

Parker mines an island of paydirt; the Hoffman crew puts rock trucks out of commission; Tony finds an electrical problem.

Parker diverts a creek in order to mine a pile of gold in the riverbed; Tony's crew is upset over fitting the tailings conveyor; Jack is accused of sabotage.

The Hoffmans' sluicebox is frozen; Tony tries to run his dredge, but discovers a lost part of his bucket line; equipment issues hinder Parker.

The Hoffman crew tries to reach their season goal; Tony tries to run the gold dredge, but finds himself shipwrecked; Parker makes a push to hit his goal.

Freddy and Derek Dodge search for gold in the Yukon wilderness; Freddy believes there is a hot spot around.

Parker faces mutiny, the Hoffmans get the largest dozer in the Klondike and Tony takes one last shot at getting his dredge mining for gold. Then, in a Gold Rush first, Parker, Tony and Todd appear together to discuss the epic season finale.

The miners reveal the highs and lows, conflicts and behind the scenes drama from the season. Todd, Parker and Tony unveil their plans for next season and one key crew-member shocks everyone when he decides to call it quits.