Ruthie is having a hard time getting over Martin, who is finally making an effort to be there for Sandy and the baby. Ruthie meets a new friend, Maggie, and they must both sit in detention after school. The teacher in charge at detention, a music teacher called Feinstein, manages to get the students' attention by giving them some new insights on music and its relation to history. He also plays Gershwin songs on the piano, which seem to calm Ruthie's heartache.