Expedition Unknown

With word of an urgent lead, Josh jets to Poland to join in the opening of a secret Nazi tunnel system dug into a dormant volcano. Josh helps a local team tear away a stone wall built by the Germans in the last days of World War II.

Josh Gates hunts for Third Reich secrets as he searches for stolen art in a flooded tunnel complex, tries to decode an officer's diary pointing to tons of plundered Nazi gold and visits the ruins of a city burned to ashes in the final days of WWII.

Josh Gates heads to the Wild West in search of the hidden loot heisted by infamous lawmen turned criminals, the Dalton Gang. Re-tracing the Gang's last steps and investigating their final, deadly shoot-out, Josh chases a fortune worth millions today.