It's a thorny path for Becca to follow her heart... Now a Huntress, Becca, who has been told of a prophecy that foretells she will defeat Dracula, believes that the only way to save Derek Dearg is to kill him. But what if she's making a horrible mistake? As Becca struggles to accept Derek's vampire side and her own blooming dark desires her family pays an unexpected visit. Derek jumps through hoops to gain the approval of Becca's family, especially Becca's religious mother, Emma. As darkness creeps over San Francisco Derek gains new allies... Homicide Detective Alex Wolfman and his police dog Maddy have been investigating the strange murders occurring in San Francisco. Now bodies are missing from the morgue, and he encounters the Thorns being attacked by zombies while sightseeing. Alex tries to protect them, but when the vampire Undertaker shows up Alex is defeated. All hope seems lost until Derek comes to their rescue. The fight to save San Francisco from a Zombie Apocalypse begins... When Becca is kidnapped by Dracula and thrown into his dungeon she meets Battle Nun Kendra Knight, and mad scientist Dr. Lazar Robinovitch. She realizes that unraveling their connection to Dracula will be the key to stopping the evil plot that he plans to set into motion Halloween night. Meanwhile, Slaine offers to train Derek in his vampiric powers so that he'll be a match for Dracula. Becca has discovered Dracula's weakness in the form of his heart, Kendra Knight. Will she be able to use his weakness against him and fulfill the prophecy?