Quinn, Willow, Krystal and Ellabeth are Unicorn Riders - empowered to protect the land of Avamay. Children have been disappearing in the town of Miramar. Queen Heart sends Krystal and the other Unicorn Riders to investigate. But Krystal is struggling with her role as a Rider - is this what she really wants to be for the rest of her life? When she is approached by the leader of a group of entertainers who offers her a life of glamour, fun and adoration, Krystal must make a choice: will she give up being a Rider? And will her decision put the other Riders and their mission to save the missing children in jeopardy?