Kathe E. Mazur

A young boy needs a heart transplant but doesn't seem to want it, and his treatment causes Burke and Yang to have philosophical differences. Meanwhile, when the interns rally to help Alex prepare to re-take his exam, Meredith has to remind Izzie of the true spirit of the Christmas holiday; and despite a reconciliation with his wife, Derek isn't in a festive mood.

Frasier plots revenge when Bulldog plays a Halloween prank on him.

The CBI team visits a high-end California rehab center in order to investigate the death of a young model who was a patient there, while Lisbon ramps up her investigation into multimillionaire Tommy Volker (Henry Ian Cusick). Mary Lynn Rajskub guest stars as a fellow rehab patient.

The team discovers a disturbing family secret while trying to find a bone marrow match for an ailing teen; House tries to remove his ankle monitor so he can go to a boxing match; Taub's ex-wife wants to move across the country with their daughter.

Cooper treats a young girl who refuses surgery and would rather live out what time she has left outside a hospital; Addison gets into an intense flirtation with a doctor at the hospital; Naomi tries to help fix Sam's mistake by recommending romantic things he can do with Sonya; Pete and Sheldon try to get Violet to find out who the father is.