PJ is a little boy who lives with his family in the city. He and his friends like to play stickball in the street. But in their neighborhood, there lives a mean old tomcat. The cat crouches in the alleys and gutters, looking for a something to snatch up in his dirty old claws. Sometimes the tomcat even goes after the childrens baseball bats, balls, and gloves! One day, while sitting on the steps in front of his house, PJ sees a small, scared, hurt mouse, with the tomcat chasing it. Even though PJ is scared of the cat, he rescues the mouse and nurses him back to health. Once the mouse is better, PJ releases him outsideand gets a big surprise about the little mouse, one that changes how he sees the world. In this childrens tale, a little boy saves a wounded mouse from a vicious alley cat and learns a valuable lesson about happiness and the joy of helping others.