Simon befriends Eerie's new intelligent ATM, who gives him all the money he wants. Meanwhile, citizens of Eerie notice their bank accounts drying out.
Mr. Teller is losing things left and right. When he loses his briefcase, an anniversary gift from his wife also containing important things, Mrs. Teller becomes upset. Marshall sets out to find where the missing items are going and with help from Simon, they make a startling discovery.
Stuck having to baby-sit Simon's younger brother on Halloween, Marshall and Simon fool around with their video camera. Unfortunately they end up trapping him in a monster movie, while a mummy runs wild in their house.
Marshall knows something's up when he's sent to the new school nurse instead of detention, and his suspicions are confirmed when Simon comes out from the sight check as a homework-loving zombie.
A professor renowned as an authority on the supernatural comes to Eerie to observe an extraterrestrial object he believes will land here. Marshall immediately sees an opportunity to blow the lid of the Eerie weirdness; but is the professor really all that he claims to be?
Marshall and Simon investigate an old mill rumored to be haunted. It proves to be a hoax, set up by a mysterious young man who doesn't want anybody nosing around... or so it seems until they accidentally uncover a rusted gun, containing the ghost of Grungy Bill--Eerie's worst bank robber.
Marshall is chosen to be the Eerie "Harvest King" and must go face the Eerie wolf in the forest. Trouble is, none of the previous harvest kings have ever returned.
Strange things are going on in Eerie's local lodge - The Loyal Order of Corn, and when his father joins Marshall intends to find out what's going on.