Arizona's bad day escalates when she advises a patient on a potential double amputation; Derek breaks a promise; Stephanie and Jo find an abandoned baby; the nonfraternization rule leads to a suspension.
Addison and the team treat an illegal immigrant facing deportation who self-induces her pregnancy so that her child will be a US citizen.
A murdered Russian adoptee leads Walt and the team to a shady underworld. Henry faces trouble in jail, while Cady struggles to find him an adequate lawyer.