Twelve-year-old CeCe Monroe is enrolled at Storm Cliff Stables as Cassidy because she does not want the other girls to know that she is an actress, so when Aunt Jane asks her to assist with the movie that is to be filmed at the stables she is mostly afraid of blowing her cover--but when she realizes that the movie man calling himself Paul Martino is not the man she knows, she finds herself cast in the role of detective.