Parker's survival skills are tested in the wild; he hunts for gold along the freezing Klondike Trail in Alaska; he attempts to mine more than Todd Hoffman in South America; Parker faces extreme danger in Papua New Guinea.

Parker's quest to find the mother lode in Papua New Guinea sends him deep into the jungle where he joins locals in a sacrifice to appease the spirits; one final cleanup and gold weigh determines if he strikes it big in Kuta Village.

Parker reveals new details and insights about his epic gold mining expedition in Papua New Guinea, including a near-death moment; never-before-seen footage exposes the highs and lows of the trail as well as extreme living conditions.

Rugged terrain pushes Parker's heavy machinery skills to their limit, forcing him to attempt one dangerous maneuver after another in his quest to open a legendary lost gold mine.

Driven to find a lost gold mine, Parker joins forces with the grandson of a legendary gold miner in search of a hidden El Dorado lost since World War II.

Parker navigates the volatile and lawless town surrounding Porgera, one of the world's largest and most profitable gold mines, as he and the team try to gain access to the huge gold pit.

Parker embarks on a quest to find better land for a local mining operation and races to build a custom piece of mining equipment that will limit exposure to a deadly chemical used to extract gold.

A sudden landslide rips Parker from his feet while working on a local hard rock mining operation, washing him down a steep mountain and putting the mission in jeopardy.

An encounter with a group of machete-wielding locals tests the team's preparedness for the region's dangerous conditions after a grueling jungle trek leads Parker and his team to a network of abandoned WWII tunnels.

In the jungles of Guyana, Parker and his crew are chased by deadly caiman and bitten by piranha; they attempt to drag their boat up a waterfall resulting in a disaster that could claim the life of a crew member and bring the expedition to an end.

An out-of-control water hose injures Parker and miners refuse to lease him ground, leaving him with a stark choice between staying in the jungle or heading home.

Extreme mining conditions push Parker to build a custom piece of equipment before he seeks access to one of the world's largest gold mines; Dave's entire season comes down to the final 24 hours and a risk that threatens to shut him down.

Against the advice of the locals, Parker and his crew head off alone into uncharted jungle terrain, risking encounters with caiman, jaguars, snakes, and venomous spiders; the crew attempts to cross a quarter mile of raging rapids.

Parker races to build a custom piece of mining equipment that will limit exposure to a deadly chemical used to extract gold; Dave faces a nightmare scenario when the ground he's mining goes cold and no one knows why.

A sudden landslide rips Parker off his feet while he's working on a local hard rock mining operation; Dozer Dave bets his life savings that he can unearth piles of gold using salvaged equipment and a team of amateurs.

Parker flies in a restored Avenger warplane on his journey to retrace his Grandpa John's experience during World War II; the team assembles with a new recruit to replace Rick Ness on the expedition.

An encounter with a group of machete-wielding locals tests the team's preparedness for the region's dangerous conditions after a grueling jungle trek leads Parker and his team to a network of abandoned WWII tunnels.

Parker, Rick, Karla, and Sam cross Guyana and set up their own gold mine in Marudi, the heart of a modern-day gold rush; their dreams of jungle gold are derailed by a local land dispute that threatens to turn violent.

Parker and his team arrive in Marudi, the epicenter of a 21st-century gold rush; they have just two weeks to find a claim, get the equipment they need to set up a jungle operation and mine for Guyanese gold.

Dave Turin turns rookies into gold miners; his skills as a bulldozer driver earn him the nickname "Dozer" Dave; from the Klondike to the jungle, Dave has helped Todd mine millions, and now he's ready to set out on his own.

Parker Schnabel, Rick Ness and Tony Beets sit down to discuss the biggest moments from this past season of "Gold Rush"; The Dakota Boys reflect on their wild season and look ahead to what's next.

Back where their gold-mining adventures began, "Gold Rush" alumni Dakota Fred and son Justin persevere in the face of long odds, risking their lives for a fortune they may never realize. Assisted by a team of intrepid divers, mountaineers and bush mechanics, the Dakota Boys explore the white water rapids of McKinley Creek in Alaska, diving deep in raging torrents with a suction dredge. Not only could one wrong move prove deadly, but the guys also face wild animals, extreme temperatures and hypothermia.

The gold rush in Alaska isn't confined to the state's precious ground. It's taking place on the sea ... or more accurately, on the bottom of the frigid Bering Sea. This series, from the creators of the Emmy-winning "Deadliest Catch," follows four gold dredges and their eccentric and driven crews who risk their lives to find as much gold as possible before winter sets in and it's too dangerous to dive. The custom-built rigs, some barely seaworthy, include an 80-foot barge run by the most successful gold dredger in Nome, Alaska, and a modified skiff that seats only two people.

"Yukon Gold" follows four gold-mining crews who have merely four months in Canada's wild Yukon to earn a big payday. Fighting an impossibly short mining season and with their savings on the line, they work against difficulties to dig the precious ore out of the ground. The crews battle mechanical breakdowns, the elements and 18-hour days under the midnight sun -- all because of gold fever -- and it keeps them coming back year after year for another chance to wager it all.

"Alaskan Bush People" is a reality-documentary series that introduces the Brown family -- Billy, wife Ami and their seven grown children who -- according to Discovery -- are interesting because "they are unlike any other family in America." The channel says they are so far removed from civilization that they often go six to nine months each year without seeing an outsider. They refer to themselves as a "wolf pack" and, perhaps due to isolation, have their own accent and dialect. The Browns live in the Copper River Valley, where temperatures can drop to 60 degrees below zero, and the family recently relocated and built a cabin there because, they say, their former home of many years was seized and burned down for being in the wrong location on public land.

Tradition collides with transformation in McCarthy, Alaska. The isolated town -- once considered to be the state's version of "Sin City" -- flourished during the Gold Rush but is now home to roughly 40 people, a mix of mavericks, risk takers and rabble rousers willing to brave extreme conditions to live free. While some believe in continuing the town's frontier way of life, others feel the future of McCarthy depends on dragging it into the modern age. Long-standing resident Jeremy Keller fights to protect its roots, while Neil Darish has purchased multiple properties in town and plans to restore its vibrancy. "Edge of Alaska" tells the story of a hinterland at a crossroads.

The breathtaking beauty of Alaska sometimes hides the fact its winters can be incredibly harsh, especially for those who live in the state's outlying areas. "Alaska: The Last Frontier" perfectly illustrates this reality, as the series profiles life for the Kilcher family in the isolated community of Homer. For four generations the Kilchers have lived off what their 600-acre homestead has provided, but cultivating that living is never easy. Led by patriarch Atz Kilcher and his brother Otto, the family spends the short summer and fall gardening, hunting and fishing for food, gathering supplies from the land and preparing their animals for the winter. Viewers, who may or may not have a fancy phone by their side while watching on their big-screen high-def TV, also see the Kilchers living off the grid, where running water and electricity aren't daily staples, nor is contact with the outside world. Atz, by the way, is the father of music superstar Jewel.

Before complaining about the market price of Alaska king crab, check out this gripping documentary series, revealing the mortal perils and intense discomfort that fishing crews face on the Bering Sea to catch the delicacy. Those perils include 40-foot waves, 700-pound crab pots that can easily crush a careless crewman, and freezing temperatures around the clock.

In Discovery Channel's top-rated show "Gold Rush," gold miners, inexperienced as some may be, hope to strike it rich in the wilds of Alaska and beyond. Some dismal summers result, filled with injuries, malfunctioning equipment and constant fighting among the greenhorn miners, yet serious cases of gold fever always trump any talk of giving up and sometimes leads to dreams being salvaged. The companions series "The Dirt" presents the inside scoop on behind-the-scenes relationships between such miners as brash youngster Parker Schnabel and longtime Yukon resident Tony Beets, as the quest to hit the mother lode never stops.