With baby Suzy gone, Lewis (Sherry Stringfield) tries to get over the loss by throwing herself in her work. Meanwhile, Greene (Anthony Edwards) and Weaver (Laura Innes) discuss the possibility of making Lewis chief resident. Elsewhere, paramedic Shep (Ron Eldard), unable to cope with the dearth of his partner, begins to take out his anger on the job. Ross (George Clooney) begins cultivating an interest in his father Ray's girlfriend, Karen (Marg Helgenberger). And Carter (Noah Wyle) finds that his qualifications for graduation are incomplete. ~ Hal Erickson, Rovi