Issie's aunt is struggling to afford the costs of running her pony-training business and decides to set up a riding school over the summer holidays to bring in extra money. When she asks Issie and her pony-club friends to help out they are more than happy to help. During her stay Issie develops a special bond with a feisty little bay called Bramstoke‚ and enters him in a challenging showjumping competition with a cash prize.
However‚ Issie has rivals who want to see her fail. Can she win the competition and the money to save Blackthorn Farm?