Michael Cotter

Barney may be losing a wingman when his brother James arrives in town with some surprising news.

After the contents of a self-storage unit purchased at an auction take the BAU to Philadelphia to investigate a series of murders, the local agent becomes the center of the case.

As J.D. (Zach Braff), Elliot (Sarah Chalke) and Turk (Donald Faison) end their first year as interns, they try to help an elderly man (guest star Don Perry) get an operation despite a lack of insurance, which draws the ire of Dr. Kelso (Ken Jenkins) in the season finale. Meanwhile, when Dr. Cox (John C. McGinley) and his ex-wife Jordan's (guest star Christa Miller, "The Drew Carey Show") relationship reaches a breaking point, she drops a bombshell on the gang. Judy Reyes also stars.

J.D.'s new position as chief resident goes to his head and interferes with his relationship with Turk and Elliot; Dr. Molly Clock (Heather Graham) confronts a divorce-weary Dr. Cox about a patient.

Turk asks J.D. to take Carla out to convince her that he is a trustworthy guy, but things do not go as expected when J.D. and Carla wind up sharing a kiss.