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'S6/E4 - A Well That Takes On Water'. The Digi Diggers need to explore new ground after mining opal too brittle to sell. The Bushmen find their new claim has been dug out by opal thieves.

'S6/E5 - Bad Luck'. The Opal Whispers are forced to leave behind a rich opal seam in a mine on the verge of collapse. The Cheals are cut off from their mine by crippling floods.

'S4/E7 - Skinwalker Valley'. Phil and Jess investigate Utah's Uintah Basin, a region teeming with paranormal activity - including cattle mutilations and reports of shape-shifting creatures.

'S7/E6 - Treetop Medieval Fortress'. Pete builds a citadel fortress for a couple who loves all things medieval. A high tower will hold a round table and thrones, as well as a glass floor loft.

'S7/E7 - Mountainside Bulldog Bungalow'. A couple dreams of a treehouse that will recapture mountain vistas. Pete creates a bungalow with large windows to take in a view that was once lost.

'S7/E6 - Magnificent Manor Treasures'. Drew visits a magnificent manor in Devon, home to the same family for 600 years. And he finds quirky collectibles at an antiques shop in Bournemouth.

'S18/E9 - Audi Coupe'. Mike finds the perfect starter classic, a 1989 Audi Coupe. This rare car has a low mileage, but it's failed its MOT. The guys fix it up before a test drive in Cornwall.

'S18/E10 - VW Corrado V2'. Mike finds a 1992 Corrado G60 smothered in aftermarket mods. Parts are rare and superchargers can be costly, but Elvis determines to get this risky project done.

'S3/E13 - High Altitude Hideout'. Joey Caiafa takes on a dream project of building a cabin in Colorado. With the help of his friends, he builds a cabin suited for the ultimate outdoorsman.

'S3/E14 - Colorado Mountain Lodge'. A Colorado couple builds one of the most energy-efficient homesteads in the state. Mother Nature and original technologies give them a run for their money.

'S5/E8 - Stormy And Raney In Texas'. A young couple struggle to keep their homestead afloat in torrential Texas weather. The Raneys race to save the rain-hit cabin and livestock shelters.

'S1/E9 - Silent Butt Deadly'. Bradley and Billy are in the Mojave Desert, California, to find the bombardier beetle. When attacked or agitated, it releases a hot, noxious chemical spray.

'S1/E4 - Robert, King Of Cobras'. Robert follows in Steve's steps wrangling Utah, a highly venomous King Cobra. A vet from the zoo's hospital, Dr. Amber, visits Tandora to treat wild Koalas.

'S1/E5 - Bindi's Lemur Island'. Robert helps out with a health check for the zoo's unusual-looking alligator snapping turtles. Terri and Bindi welcome seven new Lemurs from the US.

'S1/E6 - Irwin African Adventure'. Following Steve's global conservation dream, the Irwins go to South Africa. Terri helps release a wild leopard. Bindi meets an all-female anti-poaching team.

'S16/E4'. Ever wondered how everyday items such as needles and pins, architectural mouldings and locomotives are made? The series puts more common items under the microscope to find out.

'S16/E5'. Ever wondered how everyday items such as filigree glass, fish food and motor homes are made? The series puts more common items under the microscope to find out.

'S16/E6'. Ever wondered how everyday items such as surgical instruments, ketchup and double-decker buses are made? The series puts more common items under the microscope to find out.

'S16/E7'. Ever wondered how everyday items such as light bars, wood model aircraft and metal snare drums are made? The series puts more common items under the microscope to find out.

'S8/E13 - Gassed Up'. The Bushmen accidentally unleash a potentially fatal threat to the team. Matt and Cozza reach out to Dale Groben to help lift the team's spirits.

'S16/E22 - The Gold Ceiling'. Parker and Tony try to bust through the 10,000-ounce barrier. Rick tries to get the Last Chance cut open before he runs out of Vegas Valley pay dirt.

'S16/E1 - Miners vs. Miners'. Tensions erupt among the crews as miners battle to bring in big gold. From fistfights to meltdowns, these are the loudest moments when they clashed.

'S6/E7 - At War With A Widowmaker'. With a windowmaker looming over the dive site, Dustin takes a new dredging approach that lands him in the path of Nugget Creek's roughest waters.

'S6/E8 - Explosion At Nugget Creek'. A storm tears through Nugget Creek, putting dive sites and dredges in severe jeopardy. Mounting pressure causes a potentially season-ending explosion.

'S6/E9 - Missing In Action'. With Dustin missing in action, the crew take matters into their own hands to get to the gold on Nugget Creek. But Mother Nature deals a killer blow.

'S6/E10 - Total Annihilation'. After a catastrophic storm, Dustin and Kayla return to their claims to find them completely unrecognisable. The two crews stage an epic comeback to recover.

'S2/E1 - Wild West Opal'. JC travels west to meet with his mentor and black opal specialist, Rod Manning, on a secret mission. Rod hopes he's uncovered a forgotten opal field.

'S2/E2 - Gems Of The Sea'. In the Margaret River wine region, JC sets the duo up with a job pruning vines at a winery. In Shark Bay, the boys do a deal with a pearl farmer.

'S1/E10 - Knowing Me Knowing You'. As police surround a flat where a gunman is thought to be hiding, PC Fletcher's firearms support dog, Patto, faces a dangerous situation.

'S1/E2 - Drunk Bears'. Forrest Galante investigates the wild trend of bears breaking into homes and chugging booze, uncovering shocking encounters and bizarre behaviour.

'S1/E9 - Up Against The Clock'. Police are hunting two suspects responsible for some armed robberies. And, an undercover cop foils a couple seeking to hire a hitman to kill their ex-partners.

'S5/E1 - Baked Alaskan'. Gwen, an Alaskan survivalist and Jon, an outdoors enthusiast, are in Mexico's southern coast. How will they handle the scorching and dangerous temperatures?