Operation L.O.C.K.D.O.W.N. (2004) (2004)

In "Operation: L.O.C.K.D.O.W.N. (Lurking Otherworldly Childhood Kalamity Delivers Ouchies When Naughty)", late one night, Numbuh One returns to the treehouse battle-scarred and orders his team to put their headquarters into lockdown, which will end at sunrise. But soon, one by one, they're letting out yells of pain and their rears feel quite painful. They instantly suspect that Count Spankulot is in the treehouse with them. But is the Count the real intruding threat, or is there another spank-happy vampire among them?