The Root of All Evil - S4.E4

Count Venom is back from the dead. His broken vampire heart has been restored by Tenoroc, who has a malevolent mission for his fiendishly fanged accomplice - to poison the Enchanted Forest. Matt answers Roxie's urgent summons to find that she and Gomez are facing not just the Count, but vampire Tuk Tuks, too! And the Tuk Tuks aren't the only old friends who have turned to the dark side...