England's Vanished Crown Jewels Expedition Unknown : Season 3 Episode 13
TV-PG (self-applied) Travel Channel 1h 00m
Aired: March 15th, 2017 @ 9:00 PM EST on Travel Channel
Gates tries to find the lost treasure of King John. He explores the marshlands of England to find the king's crown jewels, which were swept away in a freak tidal surge in the 13th century.
