The Tellers are welcomed to Eerie by Betty Wilson, who invites Marilyn to attend a demonstration of Foreverware, a very special type of plastic container: It's guaranteed keep anything fresh... Forever.

Marshall is scheduled to visit the dentist for a retainer. But he fears that he might end up the same way as the previous retainer recipient - He became able to hear what the dogs really say, and that was something they really didn't like.

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.

Marshall and a classmate both fall for a new girl. The boy gives her a locket shaped like a heart. When the boy is in a terrible accident, his heart is transplanted into her body. Marshall suspects that something is wrong when the girl starts acting like his dead friend.

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.