Alisa has been chosen to work as a stunt double on horseback for a big adventure movie being shot in Colorado along with her horse Diabolo. But the minute Alisa begins work her co-rider Lucy seems to have it in for her. As things go from bad to worse on set Stardust Stables is having problems of its own. Lizzie's ex has put in a claim for half of the Stardust horses and Diabolo is on his list...