TV Guide DMAX

The bidders have their eyes on items including automotive parts, a rare doll and a hockey mascot's costume as they visit an auction in St Paul, Minnesota.

A vintage bomb detonator is tested as the bidders visit an unclaimed crate auction in Tucson, Arizona.

The bidders head to an estate auction in Jacksonville, Florida, where pop culture collectibles and sealed boxes are among the items on offer.

At a government auction in Sacramento, California, Mark Meyer cuts into Martin's profits by placing a high bid on a box of knives.

Otto buries a giant water tank to solve a few shortage issues. Atz Lee and Atz Sr seek out a black bear, and Eivin builds a survival motorbike fitted with weapons.

For the first time, the Kilchers film themselves. Eivin and Eve take their kids crabbing, Atz Lee and Jane prepare Shane's cabin for his recovery, and Otto buries a pet.

The Bushmen risk their lives in the fight to get their one-tonne digger down a 20-metre deep mine shaft. Plus, new alliances are forged as the Boulder Boys hit pay dirt.

The Bushmen dodge rockfalls in a potentially deadly new mine. The Fire Crew closes in on a new deposit of precious black opal, while the Boulder Boys struggle to drain their opal pit.

In Sheepyards, the Bushmen are desperate for a breakthrough after a run of bad luck. In White Cliffs, the Young Guns are under financial strain and fall out over their new mine.

Billy sees potential in an incredibly rare Vespa 400, but the car is in bad shape. Plus, history buff Scott brings in a collection of political campaign buttons.

Paul picks up a 1930s pinball machine that's been left on the streets of Brooklyn. And, Billy shows off an incredibly rare piece of Frank Sinatra memorabilia.

A woman claims to be under attack from an unseen force, which could be linked to a Native American legend about a mysterious race of giants.

A picturesque rainbow camouflages an extra-terrestrial teleportation device.

The team tracks down a unique marker, taking them to a maze-like location riddled with caves. The determination pays off as they start unearthing priceless artefacts.

Part two of two. Bear faces more challenges in the Pacific Ring of Fire. The helicopter drops him in swamp areas devastated by the 2004 tsunami, and he tackles killer lizards, snakes and waterfalls. He is then forced to sleep in a tree to avoid the harsh weather conditions caused by tropical storms.

Basketball star John Wall asks the brothers to build an aquarium shaped like a giant pair of dice, and in Georgia they create a huge lighthouse tank for a seafood restaurant.