Jamie gets more than she bargained for... What looked to be a long, hot summer with her grandfather on his Texas ranch changes in an instant for Jamie. On impulse, she plunks down her entire summer's allowance at a horse auction for a beautiful but wild pony no one else wants. Granddad is furious with Jamie for buying the outlaw filly and refuses to help tame Lucky Lady. Then an out-of-control brush fire shows Jamie that there is more to her grandfather -- and Lucky Lady -- than she ever imagined.