As the holidays approach, Steve becomes a brat and Stan takes him to see his grandfather to be scared straight. Grandpa Jack tells him the story of Krampus that punishes the naughty children at Christmas and Steve refuses to buy into it, as Jack tells how he captured the Krampus and keeps it in a copper pot in the basement. Steve starts opening his gifts early and Stan tries to hide them in the basement. There, he is called by the Krampus who talks him into being let out to punish Steve, but he kidnaps him instead and demands Jack so he can extract revenge. Stan tells his father what he did to Jack's horror as he promises to use his CIA connections to get him out. Instead, Jack takes off.