Balthazar Blake is a master sorcerer in modern-day Manhattan trying to defend the city from his arch-nemesis, Maxim Horvath. Balthazar can't do it alone, so he recruits Dave Stutler, a seemingly average guy who demonstrates hidden potential, as his reluctant protégé. The sorcerer gives his unwilling accomplice a crash course in the art and science of magic, and together, these unlikely partners work to stop the forces of darkness. A protege of the magician Merlin must train his teacher's successor - an introverted but resourceful physics prodigy - in the art of sorcery to prevent the return of Morgana le Fay.