Londoner Issie's boring new life in New Zealand suddenly gets exciting when she encounters a frightened horse running through the wilderness.

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 behavior 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; secrets are revealed when she and Caleb get trapped together on the beach.

Issie attends a party and humiliates herself by taking her revenge against Natasha too far; Dan's grandmother may hold the key to Issie's shipwreck vision.

Issie gets a new vision of Mystic running through the forest and wonders if this might be the clue that will lead her to Blaze's herd; as they journey deeper into the forest, the kids realize they're completely and utterly lost.