Missey Wilcox is a spunky young teenager and amateur detective. She comes by her sleuthing naturally as her father is the chief of police of Evergreen. While accompanying her grandmother on a visit to the McCallum farm, she discovers clues to the mystery of buried money stolen from the railroad a hundred years ago. Determined to solve the mystery, Missey enlists the help of her best friend, Willow, to decipher the clues, but is unaware there is someone else looking for the stolen money, someone who is willing to remove all obstacles, including Missey, to get his hands on the buried treasure.