On Christmas Eve, Carol brings one of her twin babies into the ER for a checkup, while the attending room is clogged with half a dozen very sick Santas. Overstepping her authority, Finch (Michael Michele) takes teenager Chad (Emile Hirsch) away from his mother (Roxanne Hart) so he can undergo treatment for alcohol abuse. Corday (Alex Kingston) tries to persuade patient Rollins (Lawrence Monoson) to have leg surgery. And Lucy (Kellie Martin) doggedly tracks down the off-duty Dr. Romano (Paul McCrane) to beg his help in a very delicate heart transplant. ~ Hal Erickson, Rovi