Arizona tries to reconcile with Callie, who has big news to share; Teddy faces an important decision; the residents receive new interns; the Chief makes an announcement.
After returning to the Jockey, Karen attends the psychiatric hospital as an out-patient and finds that Frank has been there all along. Can he break free and save his relationship with Libby? Meanwhile, Sita is devastated when she fails her exams, and discovers her tutor will pass her if she sleeps with him. Determined to pass her exam, Sita turns to Carl for help. Elsewhere, Aiden, Patty's great nephew, arrives on Chatsworth following his mother's imprisonment, and he proves more than a match for various Chatsworth residents.