Josh travels to England and Norway to unlock the secrets of the Viking sunstone, a mystic crystal the Vikings used to conquer the seas. Before testing it, he explores a crypt in a Nordic church and descends 1,000 feet into a deserted mine.

Josh scours the Virginia backcountry in search of the legendary Thomas Beale treasure, which would be worth millions today. Since encrypted codes are hiding its whereabouts, Josh takes a detour to Philadelphia to uncover missing pieces of the puzzle.