無論颶風與米卡相隔多遠,他們的心永遠緊緊相連。這回,有位特別的女孩走進他們的生命,展開新的冒險。米卡的朋友芬妮在社工實習時,遇到了不受控制的亞希。為了幫助亞希並避免她被囚禁在兒童之家,芬妮帶她前往凱登巴赫,進行特別的「馬術治療」。康先生發現亞希易衝動的個性裡,隱藏著蒙古古老傳說中的戰士特質,既勇敢又充滿力量。亞希一見到颶風就被牠吸引,而她似乎也對牠產生特別的影響。颶風和米卡能否找到新的靈魂知己呢?Grandmother Maria, Sam and the riding instructor Kaan are trying together to keep Gut Kaltenbach running, which is in financial difficulties. The ambitious Isabell supports her, although she secretly pursues her own goals. The impulsive Ari comes to riding training in Kaltenbach, where she develops a special relationship with Windstorm, the eponymous horse of the film series, and she also makes friends with Mika. Mika and Ari try to save the estate and protect Windstorm from reckless horse trainer Thordur Thorvaldson.