A heavy summer storm brings a touring horse circus to Kaltenbach, the stud farm where Ari now calls home       Ari finds friendship in the circus boy Carlo and gets introduced to the fascinating world of trick riding       Soon Ari notices that the show horse Hurricane, aging and injured, is still being forced to perform by the cruel circus director Yiri       Ari and Carlo enlist Ari’s faithful black stallion Windstorm in a plan to save Hurricane, but Yiri has other plans which will endanger Windstorm       It will require some last minute help from Mika to save both magnificent creatures