Jackson's mother, Dr. Catherine Avery (guest star Debbie Allen), has come to Seattle Grace Mercy West to perform a groundbreaking surgery. She's there to do the country's first penis transplant on a cancer survivor named Ryan. She's also there to see her baby boy and his new girlfriend. Too bad Jackson shipped Lexie off to see her sister. It's his way of keeping her from his larger-than-life, meddling mom.
Ben has been bribing a scheduling guy named Pierre with lattes to avoid surgeries with Bailey. Now that he's been booked in her OR, Pierre will be purchasing his own lattes. Teddy catches Bailey checking out Ben's butt and we catch sight of Ian Gomez playing doctor in the hospital halls. The stars of Cougar Town are making cameos in many ABC shows, so keep your eyes open! Now back to the transplant.
Mark wonders why they are doing a penis transplant as opposed to a reconstruction. Dr. Avery (the mom) wants him to scrub in for the surgery so he can see why in person. Mark also lets it slip that Dr. Avery (the son) is his protégé. The fact that her boy wants to specialize in plastics is news to Dr. Avery (the mom).
Catherine Avery holds a surgical contest to see which two residents get to scrub in with her. It's down to three people when Alex takes himself out of the running. It's obvious he had no choice judging by the panicked look on his face after getting a page. As for the contest, the big winners are Meredith and Jackson. Don't worry. There wasn't any nepotism at play. Dr. Avery (the son) earned it.