King Arthur and his mighty sword Excalibur are a legend that has lasted throughout eternity. But unknown to many, Excalibur has enabled Arthur to be reborn throughout the years as various different people for each generation. Due to Excalibur's massive power in enabling these avatars to exist, history has undergone a distortion that will warp space and time and destroy everything. A special squad of Arthurs are assembled to correct this distortion.