Ellie Hastings receives a series of threatening notes, presented as riddles. She must solve the riddles by the deadline or something unknown and terrible will happen. An unidentified woman is murdered, a child is missing, a strange family moves into the tiny mountain village and gunshots intimidate the residents. Ellie joins with Police Chief Dave Shaffer to investigate the most puzzling mysteries she has faced. Who is the riddler and why has he targeted Ellie? Accompanied by her beloved mutt Buddy, Ellie attempts to follow the clues, solve the riddles and protect her little mountain village from the unknown.