Jack has his hands full with two of Karen's patients, Harriet Owens, who hasn't moved out of his house yet, and the delusional Luke Sarison, who believes McNeil is his father. Aaron and Kate vie for chief of surgery. Phillip is invited to join his latest girlfriend, Emma, when she moves to Paris. Danny Nyland is arrested for the Jessup death, and subsequently transferred from the ER to the blood bank.