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 gets a new vision of Mystic running through the forest along an old railway track, and wonders if this might be the clue that will lead her to Blaze's herd. After some encouragement, Issie decides to ride out on Blaze to find the tracks, and Caroline, Caleb, Dan and Natasha join her on the mission.