After twelve years of secret training, Druid Atticus O’Sullivan prepares to bind his apprentice, Granuaile, to the earth, aiming to double the world's Druid population. However, on the eve of this crucial ritual, the world, long believing him dead, shockingly discovers Atticus is alive and well—a revelation many would prefer remained buried.
Left with no alternative, Atticus, accompanied by his loyal Irish wolfhound Oberon and Granuaile, journeys to the base of Mount Olympus. There, the Roman god Bacchus eagerly awaits his sworn revenge. Yet, Bacchus must contend with a queue of other formidable adversaries: an ancient vampire, a dangerous band of dark elves, and a cunning old god of mischief, all united by a singular, deadly objective: to kill the Druid.