Londoner Issie's boring life in New Zealand suddenly gets exciting when she encounters a frightened horse running through the wilderness. But the horse is in danger and Issie discovers that it is up to her to save her.
Issie discovers that rescue horse Blaze has life-threatening injuries. When Tom insists that Blaze is impossible to tame and can't be saved, Issie refuses to give up on her.
At the stables' Family Fun Day, the kids compete with rivals Dulmoth Park. Issie's visions become hard to ignore and her reckless behaviour endangers her future at the stables.
Issie looks for Mystic on a remote beach and finds buried treasure, which could be connected to her visions. And secrets are revealed when she and Caleb get trapped together on the beach.
Issie attends a party at the local marae and humiliates herself by taking her revenge against Natasha too far. Meanwhile, Dan's grandmother may hold the key to Issie's shipwreck vision.
Issie's vision gives her a clue to where Blaze's herd might be so she rides Blaze out into the forest to find them - but the mission has serious consequences for the gang.
Issie rides Blaze in the Cross-Country Trials against rivals Dulmoth Park - but is Caroline really fit enough to compete? And who spooked Blaze right before Issie's ride?
A storm sees the kids staying over at the stables, Natasha takes a chance in her friendship with Dan, Issie discovers the truth about Hexronn and the gang launch a campaign.