The young and handsome boy William Thatcherborn in a civilian family in France. He has practiced swordsmanship and horsemanship since he was a child, and has always dreamed of becoming a majestic knight. Reluctantly, the social hierarchy was severe at that time, and there was an insurmountable gap between the common people and the nobles. When he became an adult, William could only serve as an attendant for a real noble knight.
In an aristocratic knight’s horse and spear contest, his master suddenly died unexpectedly while resting between the courts, so William put on his master’s armor and mounted his mount, imposting and winning the game. Holding the trophy of victory, a plan to realize his childhood dream appeared in William's mind. He decided to continue to pretend to be his master to participate in the World Knights Championship in London, and make himself a real knight by winning the game. Accompanied by his good friend Roland, William set off.
On the way, they encountered all kinds of troubles and dangers, and they also met all kinds of people, such as WattTudyk, the blacksmith Kate, and the unknown Writer Jeffrey Chaucerplayed. With the concerted efforts of these people, William's aristocratic status was disguised seamlessly, and he successfully entered the competition.
William not only has to compete with many martial arts opponents, but also always guard against his false identity being dismantled by people with bad intentions. Through a series of hard work, William not only won the final victory, but also won the heart of a beautiful noble woman, Jocelyn.