Life isn't easy for the gold dredgers in the frontier town of Nome, Alaska, where a modern day gold rush is underway. But that doesn't stop them from hunting gold in one of the world's most inhospitable places - the bottom of the frozen Bering Sea.

Follow the lives of ambitious miners as they head north in pursuit of gold. With new miners, new claims, new machines and new ways to pull gold out of the ground, the stakes are higher than ever. But will big risks lead to an even bigger pay out?

Escobar raked in billions of dollars a year, making him one of the richest men in the world. Escobar strategically buried stashes of cash all over Colombia, yet much of it hasn’t been found. With unprecedented access from the Colombian government, two former DEA agents, Chris Feistl and Jerry Salameh, who spent their careers hunting down narcos, are now returning to Colombia in search of Pablo Escobar’s buried treasure.

"Expedition Unknown" chronicles the adventures of Josh Gates as he investigates unsolved iconic stories across the globe.