When a group of Nationalists use an ancient artifact to bring a villain from Arthurian myth back from the dead to gain power, ex-monster hunter Bridgette McGuire escapes her retirement home and pulls her unsuspecting grandson Duncan, a museum curator, into a world of magic and mysticism to defeat a legendary threat.
The civil war continues to rage in Otherworld as both Arthurs face off against one another!
Meanwhile, Bridgitte and Duncan seek out a secret weapon against their royal foes—a true man of the people by the name of… Robin Hood.