Kelsi Fairgate, a fourth grader and only child living on a ranch in the middle of Texas, awaits the end of the school year. When her parents bring in an orphan lamb from a pasture, her prospects for the summer look up. Kelsi and her friend, Ampara, run into some serious rattlesnake trouble one day. The lamb saves Kelsi, but then it is the girls’ turn to try to save the lamb!