Calvin and Jerome had a summer of bike riding adventures planned with the guys in their newly formed bike club. A chance meeting with Kecia in front of their apartment building altered their plans and added to their adventures. They learned that Kecia was homeless and couldn't read very well because she was unable to attend school. Calvin decided to use the new bike club to start a summer school for Kecia and her friends. As the guys from the bike club help the homeless children learn reading, writing and arithmetic they realize that they are learning as much as they are teaching. With the laughter, new friends and sense of accomplishment, they learn that summer school may be the most rewarding adventure of summer vacation.