Natalie is at the youth camp with Heather and Nolan and she has made new friends there, Toby and Mike. One day, as they were playing treasure hunt, Natalie finds a piece of blue denim cloth caught in a tree. She takes the cloth and keeps it, not knowing whether it was a sign of a mystery to come. However, when Toby snatches the cloth from her and demands to know where she found it, Natalie suspects something was going on. Thus begins the road to a marvelous mystery Together with her new friends, they stumble upon dangerous secrets lurking in the swamp. Will Natalie manage to solve this...