Teen sleuth Nancy Drew, and her friends George and Bess, search for missing student film-makers and, in the process, discover the secret behind the local urban myth known as The Demon of River Heights.
Nancy and her friends interview Terry Smith, who takes in stray cats and kittens; but when two kittens turn up missing, the girls must discover what happened to them.
When the class hamster goes missing, Katie brings in a bunny to be the new class pet. When someone starts wrecking the Spring Fair preparations, all signs point to the bunny. Nancy is on the case, and she may solve two mysteries at once.
Frank and Joe Hardy, selected to be among the first contestants on a reality-based game show filming in Bayport, find themselves on the defensive when their success at the game leads jealous competitors to blame them for problems on the set.
Sabrina, Daphne, and Puck, stuck in the Book of Everafter, set out to save their baby brother and are confronted by the book's guardian, who threatens them if they do not stick to their stories.