Aaron discovers that his late father wasn't his biological parent when he meets the eccentric sculptor who is; Phillip learns something about his estranged son when an emergency arises; Kate treats an 11 year-old genius who hungers for contact with his overwhelmed father.

After a little too much holiday cheer Wilkes is charged with a DUI and must serve a community service in Dr. Hancock's clinic. Watters discovers that his accountant has left the country with Watters money. Shutt turns over a patient to Catera, and the two clash over whether she should perform a dangerous surgery on the patient. Dr. McNeil is elected to play Santa and is a huge hit in the childrens ward. Grad receives her Christmas present a little early.

A member of Jack's basketball team sustains a near-fatal injury during a game; Bobby disagrees about the need for his patient to have heart surgery.

Kate meets up with an old boyfriend, who turns out to be an ex-husband. Lisa tried to prolong the like of a pregnant woman with brain cancer. Cacaci forces Aaron to investigate his charge that Phillip had an affair with a patient.