As her young patient's condition worsens, Bailey seeks desperately for an organ donor. One possibility: death-row inmate William (Eric Stoltz). Meanwhile, an injury leaves Mark in a compromising position in the OR, and Cristina tries to avoid Owen, and she (more…)As her young patient's condition worsens, Bailey seeks desperately for an organ donor. One possibility: death-row inmate William (Eric Stoltz). Meanwhile, an injury leaves Mark in a compromising position in the OR, and Cristina tries to avoid Owen, and she looks foolish doing so. Arizona: Jessica Capshaw. Melinda: Samantha Mathis. Denny: Jeffrey Dean Morgan.

Engagement ring in hand, Derek searches for the right way to propose to Meredith. Meanwhile, Lexie demands that Mark go public with their relationship; and Bailey considers a new direction for her medical career, encouraged by Dr. Dixon (Mary McDonnell) as (more…)Engagement ring in hand, Derek searches for the right way to propose to Meredith. Meanwhile, Lexie demands that Mark go public with their relationship; and Bailey considers a new direction for her medical career, encouraged by Dr. Dixon (Mary McDonnell) as well as her work on recent cases.

In a "Private Practice" crossover episode, Addison, Naomi and Sam rush Addison's ailing brother, Archer (Grant Show), to Seattle Grace in an effort to save his life. Meanwhile, Owen runs into a significant someone from his past; and Izzie employs her fell (more…)In a "Private Practice" crossover episode, Addison, Naomi and Sam rush Addison's ailing brother, Archer (Grant Show), to Seattle Grace in an effort to save his life. Meanwhile, Owen runs into a significant someone from his past; and Izzie employs her fellow doctors in a medical game designed to help teach the interns.