Pony of the Year is approaching fast, and everyone in Tess's family is determined to see her compete in the prestigious event - everyone, that is, except Tess herself. She has never liked riding the exuberant show jumper Misty Magic, and a crashing fall during training leaves Tess bruised, battered...and terrified of getting back into the saddle. While her sister Hayley's future hangs in the balance as she prepares to undergo invasive surgery to try and save her life, Tess is blindsided by the revelation that the one person she thought she could count on may have been lying to her all along. Can Tess find a way to conquer her fears once and for all, or will she let her sister down when it matters the most?