After being considered as nothing more than a ‘gadget man’ by the citizens of Duckburg, Gyro’s had it! One day, Huey, Dewey & Louie stop by as Gyro puts the finishing touches on his ‘time tumb,’ a time machine that he uses to send them back to medieval times. While there, Gyro thoroughly impresses King Arty (who loves to party), much to the chagrin of Arty’s magician. Gyro tries to prove that he can be a gallant knight, but his impressive mechanical side is what saves the day for King Arty and his kingdom.