Josh scours the Virginia backcountry in search of the legendary Thomas Beale treasure, worth millions today. With encrypted codes hiding its whereabouts, he takes a detour to Philadelphia to uncover missing pieces to the puzzle.For even more Expedition Unknown, head to discovery+. Go to discoveryplus.com/expeditionunknown to start your 7-day free trial today. Terms apply. Hosted on Acast. See acast.com/privacy for more information.