The Dirt Dogs' 'Heap Leach' plant is in trouble; the Scrappers finally make it onto the goldfields with their new machine; daughter Tyler joins husband and wife prospecting team Ted and Lecky Mahoney.

The Dirt Dogs go on a high-speed chase in pursuit of two brazen poachers and await the final results of the tests at the Mint. Meanwhiles, thieves also strike a devastating blow for Rick.

The Dirt Dogs are forced to move their operation, the Gold Gypsies will stop at nothing to reach their $80,000 target, and Rick hits gold at a remote lease when he injures his knee.

Dirt Dog Vern is hungry to find a gold-bearing reef, the Scrappers are finally ready to fire up their gold processing wash plant, and Ted and Lecky take a gamble on an historic junkyard.

Record cattle prices and a wet season have turned the outback into a gold mine for bull catchers; husband-and-wife team Liz and Willie Cook are expanding their empire, but with ever-increasing debt.

Heli-loggers Integrated Operations are deep into their wet winter season on the west coast of Vancouver Island, and intense rain and fog threaten to strand two fallers on the hill.

The Peters Contract Logging crew in the southern part of the province move their 40-year-old yarder onto a new block, but a series of mechanical issues set them back before they can even get started.

The Duz Cho Logging crew has only days to finish their winter block before a spring thaw destroys the road when a giant sinkhole shuts down production during the chaos.

Summer is in full effect, and that means that Integrated Operations is moving into the final phase of their project: loading four million dollars' worth of timber onto a giant floating barge.

After two months off, Freya Logging moves into their summer block under the threat of a wildfire shutdown; however, setting up their high-tech fleet is marred by some unwelcome ghosts in the machines.

Log barge crews push through cold and chaos on Hecate Strait, while commercial diving students face the toughest training on the planet.

A rescue pilot frees rehabilitated raptors, fishers hunt elusive rockfish, and a First Nation fights to bring its salmon home.

A rescue team races to save a seal pup and an ailing sea lion as scientists hunt what's killing the coast's vanishing grey whales.

Orca research, ancient K'ómoks fish traps, and a salmon hatchery - on BC's coast, the past is teaching the future how to survive.

On Vancouver Island, surfers, scientists, and a Tla-o-qui-aht carver brace for the Cascadia mega-quake - not if, but when.

The Poseidon Crew are running out of time to find a 1000-ounce nugget, the Gold Retrievers attempt to escape dangerous summer heat, and the Goldtimers confront the extremes and uncover a massive haul.

Marcus, Linden and Dale desperately need new ground, the Poseidon Crew's hope for a 1000-ounce nugget is slipping through their fingers, and Shane and Russell take the biggest gamble of the season.

Heavy rains in Victoria threaten to shut down the Poseidon Crew, Jacqui and Andrew struggle through 40°C heat in Queensland, and the Goldtimers negotiate a lucrative deal to sell their mining rights.

The Ferals hit a run of nuggets that could transform their season, the Gold Retrievers are rocked by a medical emergency, and Marcus, Linden and Dale try to salvage a disastrous season.

Ryan collapses in a heatwave before the Ferals uncover a massive haul of gold, the Poseidon Crew's site is swamped after a brutal storm, and Shane and Russell uncover the biggest nugget of the season.

To prepare for the winter ahead, the Alaskans brave dangerous encounters with hungry predators while hunting in the remote mountains, and gather life-enhancing foods in the surrounding wilderness.

The Alaskans must take advantage of the migrating moose and fish, before the rivers freeze and winter sets. But caution is paramount, as they aren't the only ones looking for food in the Arctic.

As the long-awaited crab season begins, hundreds of boats hit the water and one sailor hopes to set a world record.

Newfoundland's biggest dry dock handles critical jobs, and a rookie skipper takes his shot at a tough fishery.

A rookie skipper has a humbling start, and a stranded fishing vessel needs a multi-team recovery.