After Jim McSporran is taken away by the Police, Jamie and his Granny decide to get help from Sam and Dr Abbey. Just before they leave, Granny McSporran notices something strange in the back garden… a fox copying her movements! Things are getting weird in Zombieville. Meanwhile, over at Sam’s house, Sam and Dr Abbey are dealing with their own uninvited guests. As the zombies (and zombie squirrels) break into Sam’s house, Chief Anderson turns up just in time with some blue liquid! But it’s not an entirely welcome visit for Dr Abbey who also gets taken away by the Police! The mysterious men (known as G-Men) turn up in Zombieville and overhear Chief Anderson and news reporter, Kelly Lee, talking about spaceships and people going crazy!