Lindsay tries to convince Harold to let her join her friends at a Who concert. Kim and Lindsay accidentally run over Millie's dog. Kim starts hanging out with Millie. Lindsay wants to tell Millie the truth about her dog, but Kim doesn't. Meanwhile, Nick teaches himself to play guitar and writes a love ballad for Lindsay and decides to play it for her despite Kens' objections. Ms. Haverchuck stuns Bill with the news that she has been dating Coach Fredricks.