Lisa develops a crush on Nelson Muntz. She tries hard to change the bad boy into a sweet, caring, gentleman and after some hard work she thinks she has succeeded.
Meanwhile, Homer acquires an auto dialer and uses it to con Springfield residents into sending him money for happiness. However he is caught and is ordered by the court to apologize.
Lisa discovers that Nelson has egged Skinner's house, influenced by the rest of the gang, and so realizes she has changed nothing. The playground bully and Lisa decide to just be friends.