Nanageddon (S02E03)

To win over a couple of goth girls, the boys decide to hold a séance in their living room. Chaos erupts when they accidentally summon a wicked demon named Nanatoo, who makes off with the magical book belonging to their flatmate, the Shaman Naboo. Furious, Naboo drowns his sorrows in alcohol, leaving Howard and Vince to track down the demon, recover the stolen book, and stop the impending disaster they’ve unleashed.