Gold Rush Alumni, Dakota Fred & his son Dustin, are risking it all to find a fortune in gold, braving the raging waters of Alaska’s wildest creek. This is extreme gold mining: their camp was destroyed by grizzlies & access to the creek is a zip-wire over a 400-foot canyon.

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

Whether racism, homophobia, religious hatred, ethnic hatred, or class hatred, a rising tide of hate has pushed the global society to the brink. In this six-part global event, director Alex Gibney and executive producer Steven Spielberg join forces to ask: If we can understand hate, can we find a way to stop it?

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?