Greys Anatomy

As the holiday season passes, Miranda is visited by her father, who disapproves of her life choices; Mark and Lexie must cope with the arrival of a woman from his past.

Owen recruits a fellow Iraq War veteran to be the new cardiothoracic surgeon, but Cristina questions the new surgeon's abilities; Izzie returns with her high school mentor.

The parents of Arizona's 10-year-old patient offer the hospital a generous donation, but Arizona finds herself in a conflict of interest when the patient's condition worsens.

When the hospital lab tech, Isaac, discovers he has an inoperable tumor wrapped around his spine, he turns to Derek for help; Derek challenges Richard's authority.

When a burn victim unexpectedly dies in the E.R., all the Mercy West and Seattle Grace residents must defend their actions in hopes of saving their jobs.

The residents of Seattle Grace and Mercy West vie for their careers as the hospital merger begins; Arizona stands by enraged Callie.

Meredith must save Thatcher's life; Izzie empathizes with a tumor-riddled patient; annoyed with Cristina's competitive zeal, Mark tricks her into assisting on an odd surgery.

Izzie returns to work; Seattle Grace residents position themselves to avoid layoffs; Cristina tries to work with Arizona in the pediatric ward.

Members of the hospital staff find unique ways to deal with their grief at George's death; George's mother faces the daunting task of deciding what to do with his organs.

Members of the hospital staff find unique ways to deal with their grief at George's death; George's mother faces the daunting task of deciding what to do with his organs.

To help Bailey become the best general surgeon at Seattle Grace, the Chief gives her new power, new responsibility, and the challenge of removing a girl's inoperable tumor.

Ricardo Martinez sits down with Jessica Capshaw to ask the top 5 questions from fans!

Bailey heads up a team of surgeons performing a "domino procedure" in which each surgery hinges on the one preceding it.

Always a little romance at Seattle Grace!

Get up to speed on all of your favorite doctors at Seattle Grace Hospital!

Get up to speed on all of your favorite doctors at Seattle Grace Hospital!

A plumbing leak becomes a deluge and wreaks havoc at Seattle Grace, as the Chief attempts to implement new policies and George tries to retake his residency exam.

Meredith freaks out when Derek discovers her mother's old diary in the house and Cristina stumbles into a part of the hospital that she's never seen before.

Derek's mother, Carolyn, makes a surprise visit to Seattle and meets Meredith for the first time, as Mark tries to conceal his relationship with Lexie from her.