Monster hunters ;

Where's Casey? She's a prisoner of a living dinosaur-like creature in the Boston Science Museum! This is a case for the Monster Hunters! Edward Crane Jr. ("Numbles" to his friends) calls in his monster-hunting friends to help him find his six-year-old sister, Casey, lost during a sleep-over "Camp In" at the museum.

When the cows on his grandparents' Vermont farm are dying and the vet can't determine the cause, young Sherlock Holmes fan Brian enlists the aid of two new friends, Mumbles and Darcy, to solve the mystery.