May Grover is having one of those days. Everyone is mad at her. First, she woke up Jasmine's little sister. Then she broke the heel on one of her mother's favorite shoes. Finally, she let a puppy out of his pen, and Doc Tock had to chase him all over the yard. May didn't mean to do anything wrong, but she couldn't do anything right. When she goes riding with her friend Joey Dutton and his father, May is determined not to make any more mistakes--but everything still goes wrong! Now May's family and friends think she has run away from home.