Hidden away in the Nevada Desert, Dave discovers a claim producing massive gold nuggets. Only one problem: there's no water to wash the dirt away. If only there was a dry cleaning service for gold

On a historic claim in Willow Creek, Dave knows there's gold within the dense, black sands of the riverbed. The pay dirt could be worth thousands, but nothing's easy when it comes to flour gold.

In 1862 a huge gold deposit was discovered in Grasshopper Creek, transforming the tiny Montana town into a thriving settlement. According to the locals, the old-timers missed a spot. Can Dave extract the last bit of gold from this legendary location?

In Nevada, Dave Turin is answering the call of some desperate miners. A $750k investment has yielded just $10k of gold in 4 years and left them on the brink of bankruptcy. Can Dave finally decode the land and turn catastrophe into Big Canyon fortune?

At the site of one of the most important mining discoveries in the United States, Dave must untangle the mystery an old dredge and discover if enough gold exists to fund a new generation of miners.

Tucked away in the Arizona desert is a gold mine that changed the course of American history. Legend has it, Abraham Lincoln used the gold from Lynx Creek to fund the North's efforts in the Civil War. Can Dave find the gold that Old Abe left behind?

Rescuing stranded climbers with no coordinates is a daunting task.

Jason preps his helicopter for the world's highest landing spot.

Ryan battles the elements racing back to Lukla with sick climbers.

Ryan confronts an uninvited climber trying to hitch a ride at 17,500 feet.

Jason and Siddartha try to save climbers along a treacherous icefall.

Ryan struggles to locate a woman suffering from severe abdominal pains.

An IMAX filmmaker and an atmospheric scientist try to intercept tornadoes.

A chase is cut short when the storm moves into an area without paved roads.

Sean begins to trust his instincts over Josh's science.

Tornado season winds down, and Sean seeks a shot from inside a vortex.