Ben Robinson traced the dramatic final days of King John, the most catastrophic monarch in England, and revealed the legend of his lost treasure. Within ten days, King John suddenly passed away as the ruler of an empire, leaving the kingdom in ruins. John is famous for the founding of the Magna Carta, which inspired our modern democracy. Ben followed the footsteps of the king's epic final journey from the dangerous swamps of East Anglia, passing through Lincolnshire and Nottinghamshire, to his final resting place in Worcester. Professor Stephen Church, a medieval historian, also joined his ranks. They studied together the truth behind this 800 year old legend. Did the jewelry on the crown really fall into the mud in Washington? Is the king poisoned? Does he deserve the reputation of our most catastrophic monarch? Thanks to unique literature, we were able to tell this epic story in the king's own words. We can not only enter the mind of the King of the Magna Carta, but also reveal in great detail how and where he traveled. This reveals what happens when a treasure hunter tries to find the lost jewelry of the king with the help of a fortune teller. The use of the latest technology has revealed how we truly return to the past, revealing the landscape of King John's last trip 800 years ago.