Ralph Cole Jr.

Charlie and Alan help Jake prepare for his first boy-girl party.

When one of J.D.'s (Zach Braff) favorite patients Harrison Marks (guest star John Bennett Perry) is in dire need of a kidney transplant, J.D. takes matters into his own hands by finding his long-lost son Murray (guest star Matthew Perry) in hopes that he'll donate his kidney. Despite Dr. Cox's (John C. McGinley) warning to J.D. not to interfere with family business, J.D. persists and complications arise. Meanwhile, Elliot (Sarah Chalke) is fed-up with co-workers not taking her seriously, and discovers she can get her way by flaunting her femininity with some help from Carla (Judy Reyes) and Jordan (guest star Christa Miller). Donald Faison, Neil Flynn and Ken Jenkins also star.

A Navy lieutenant is found murdered in his hot tub; the team interviews families in the victim's peculiar neighborhood; Torres must face the consequences of a volatile night out with Palmer.

Dave and Deena's plan for a secret getaway to renew their wedding vows turns chaotic; Natasha interrupts Brian and Adam while they are baby-sitting; overwhelmed Nicole does not have help to tend to many new customers.