After two glorious (though somewhat hectic) semesters with her dad in New York City, Mimi must make good on her promise to her parents: summer break with her mom. But it seems going back to her cozy old life in Houston isn't in the cards. Instead, she's dragged off to Berlin, where her mother's been offered a fellowship. After a few weeks of a nightmare nanny job, it becomes clear that Mimi's European vacation isn't much of a vacation after all...