Carter receives early tenure, at Susan's expense. Luka finds Sam's pregnancy test, and discovers that she's not expecting. Pratt's friend convinces him to attend an old friend's 30th birthday party. Ray thinks a 14-year-old is a drug seeker, but he's really the victim of molestation. Abby meets Jake's extended family at his niece's baptism. Morris is named the new Chief Resident.

Carter's last day at County General is marked by a surprise gathering and an 11-year-old patient he delivered as a medical student. Ray is at a party and must takes charge when a balcony collapses. With all of the attendings at Carter's party, the three interns manage the traumas until Luka arrives. Pratt briefly visits his father, without revealing their connection. Upset that Sam won't let him visit Steve, whom he does not know is in jail, Alex steals Sam's credit cards and hitches a ride out of town.