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On Shelter Island, builders Dave Bartlett and Hans Moser are on their own with setting the extremely heavy ridge beam until help arrives.

Chase Morrill splits his team to revamp two A-frame cabins in Maine's Sugarloaf Valley. With six weeks to finish both projects, the competition is on.

I Don't Want To Die Today - Part 2. Kilcher road is threatened by a dangerous flood and Otto must repair the vital road before it's washed away. Atz Sr. recovers from his surgery.

Mike Reynolds is considered a hero by many for his radical building techniques. The team need to build an 'earthship' in a month, can they complete it on time.

Marcus and Linden fear a flat battery could leave them stuck in the outback for days. Plus, Shane and Russell make a desperate attempt to get their season on track.

Scandies Rose. As winter slams the fleet, the Coast Guard responds to a Mayday call, as captains and crew brace for the loss of friends. Sig and Monte track an opilio hoard.

At the edge of Yellowstone Park, Herb Johnson's ancestors homesteaded more than 100 years ago. Now, he's ready to build his own off-the-grid home on the land.

The Raneys answer an SOS from a family displaced by their failing homestead. Matt teaches an ill mother how to face her fear of invasive hogs.

Hard ground at the Bushmen's claim causes damage to their digger. Pete and Sam hunt for better opal dirt as their 'mega wash-plant' shows promise.

High summer temperatures cause the miners to find new strategies. Shawn fights a legal battle, while Emily and the Kellys look to expand their operations.

As summer kicks in, Ken and the Myrtle Irene get stuck in the mud. The Kellys are forced to bail out and Shawn gets word on the fate of the Christine Rose.

Richard faces the hard reality that the workshop isn't yet making any money. But a fast turnaround paint job on a Land Rover provides some financial respite.

Dave buys a 1929 Roadster that he wants to fix up and flip, but Kevin fears he's bought another lemon. Kris tackles an engine that won't cooperate.

The winter season strikes the fleet with brutal Storm Elsa. And, Josh and Casey haul their all-time biggest pots, starting a gold rush to the Russian Line.

I Don't Want To Die Today - Part 2. Kilcher road is threatened by a dangerous flood and Otto must repair the vital road before it's washed away. Atz Sr. recovers from his surgery.

The Mooka Boys may lose a potential investor due to their little mining progress. Disaster strikes for the Opal Whisperers when Sofia's hoist fails.

Shawn unleashes the Christine Rose to try and find a lucrative riverbed. Vernon's new crew go for a test dive, but the practice takes a dark turn.

Josh and Casey approach the ice edge while braving an Aleutian storm. Jake's niece and engineer climb the 30ft crane to make a critical repair.

Paul Mackie's mine makeover team deal with hardship and heartbreak as they help up-and-coming prospector Jarrod Crosbie overcome a barrage of setbacks.

A freak injury puts super-fan survivalists Maci and Justin at risk as they attempt to survive the treacherous Nicaraguan jungle for 14 days.

A storm destroys the Morse's supply of food, turning their Alaskan dream into a nightmare. Stan Zuray builds a survival shelter for a dicey stretch of the new road.

For builder Adam Tschappat, a faster pace comes to a screeching halt when two crucial logs go missing at his build site in McCarthy.

Chase Morrill and his team of builders transform a dated cabin into a family retreat. But, snow delays and a tight budget make it a tough job.

Part 1. While transporting calves by boat, Otto, Charlotte and August are marooned. Meanwhile, Atz Lee struggles with his PTSD and Jewel visits the homestead.

The Perrins brothers build a remote log hunting cabin in the heart of the Alaskan Range. The process includes the use of archaic tools, materials and pioneering techniques.

A wet plant disaster threatens the Dust Devils' potentially lucrative fine gold find. Plus, the Gold Timers desperately try to turn their season around.

As the crab biomass migrates across the Russian line, Josh and Casey dump 175 pots on the border. Meanwhile, Jake's new deckhand suffers an injury.

Facing a 500-mile wide Siberian storm, Josh takes a big risk to keep the Cornelia Marie crew safe. Junior loses control and puts his boat at the mercy of dangerous seas.

A family builds a three-storey tiny house full of clever features on the easternmost part of the US. But to beat their tight deadline they have to enlist some locals.

The Raneys tackle a treehouse cabin on the verge of collapse in Missouri. Marty overhauls the entire base of the cabin, while Misty constructs a greenhouse.

The Tunnel Rats struggle working on unfamiliar ground. The Boulder Boys try to keep their jobs with a last-ditch hunt to satisfy their mining partners.

Shawn gets his first taste of the shifting seabed. Ken tries a new perspective to find new ground, while Kris and Emily each try out rookie divers.

The miners seek more valuable ground. Shawn must fight the sea's shifting tide, Ken strains his excavator arm and new diver Brian saves Vernon's day.

Richard is under pressure when he competes at an NEC show to bring in clients. Plus, Anthony's unusual repair job has him sourcing spare parts from Sri Lanka.

Dave Kindig buys a 1962 VW Bus to restore, re-upholster and flip. Plus, a Kindig classic, the 1968 Boss Mustang arrives for some upgrades.

The wrath of Arctic storm Elsa hits the Cornelia hardest as a breakaway pot thrashes Josh and Casey's crew. And, the icy blasts threaten to capsize the Wizard.

Part 1. While transporting calves by boat, Otto, Charlotte and August are marooned. Meanwhile, Atz Lee struggles with his PTSD and Jewel visits the homestead.

The Blacklighters discover opalised sea creatures in an ancient seabed. The Cheals close in on their biggest opal haul ever, but all is not as it seems.

In Blountville, Tennessee, the builders find a 200-year-old log cabin built in 1818, and Mark teaches the new crew how to scout log cabins.

Two natural builders team up to experiment with a never-before used building material: mushrooms. They hope to virtually grow a home that blends into the environment.