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.
Vengeance on the Arthurs proves to be exactly what it takes to bring Mary and Bridgette together, despite years of strife.
Will their reunion survive the battles to come? Or is this merely another ploy to split the women apart once more?