A valuable show horse, transported from France, arrives at Pine Hollow with the horse's mysterious owner to arrive later. Amidst all the excitement, Carol begins to believe that her friends in The Saddle Club have forgotten her birthday. When the champion event horse (Hugo) escapes, Carol, Stevie and Lisa take it upon themselves to help find him. The girls find Hugo, unveil their surprise birthday party for Carol, and learn that the horse's owner is none other than French dressage champion Dorothee Doutey. Six months ago she fell in competition and broke her pelvis, but, more importantly, the fall broke her self-confidence and shattered her relationship with horses and Hugo. Dorothee becomes the riding instructor at Pine Hollow, but the lessons she learns from the Saddle Club girls heal her emotional wounds.