Samantha moves to a new town and hears about a horse. A very special wild horse. Samantha goes out one night to find the horse and is shocked to see the horse is injured. Samantha goes out a second time to help the horse but is caught and grounded. Her mom contacts her aunt, a vet, who offers to help Samantha with the horse. When Samantha's aunt wants to take the horse off the range, Samantha worries the horse will never go back home. Samantha then becomes furious, ripping her friendship with Lilli apart and turning her relationship with her family upside down. Can Samantha go back to her old self when your aunt offers her something she has always wanted? Will the horse in the mist return to the wild?