Cory Matthews winds up with detention after trying to listen to a Phillies game in class, while his teacher, Mr. Feeny, is trying to teach the class the great value that love has in all of their lives. However, Cory doesn't find love and girls such a good thing when his older brother, Eric, takes a girl to a Phillies game instead of him. This prompts Cory to move into his treehouse. (thetvdb.com)