Cristina enlists Meredith to help her prepare an acceptance speech.
Cristina won't let herself get excited when she is nominated for a Harper Avery award; Alex thinks about making a change; Callie and Derek work with a machine that recognizes emotions.
The doctors are exposed to flu-infected patients; Derek prepares to give a speech; a new doctor gives Alex a glimpse into an alternative medical practice.
Cristina thinks about her future; a patient decides whether to live or not.
Bailey asks Richard to join her on the case of a lifetime; Meredith decides to hire a research assistant; Callie shocks Derek; a young pregnant woman (Keke Palmer) needs Shane's help.
Arizona's bad day escalates when she advises a patient on a potential double amputation; Derek breaks a promise; Stephanie and Jo find an abandoned baby; the nonfraternization rule leads to a suspension.
Couples panic when the hospital announces a nonfraternization policy; Owen and Emma discuss the future; Meredith and Cristina have some girl time; Richard asks the residents for help with a rare cancer case.
The doctors are faced with the consequences of the events at April's wedding; Alex reacts to the news about his father; Callie and Arizona make a decision about their relationship.
Meredith and Cristina bicker about their careers; Bailey talks to Ben about him moving back to Seattle; Shane puts himself in a risky situation; Derek receives a life-changing phone call.
April's visiting sisters get on her nerves; when Matthew and Jackson witness an accident, they must work together; Callie and Arizona work on their relationship.
Ben worries that an innocent conversation with Derek could end up causing problems for Bailey; Cristina turns to Shane as tension with Meredith increases; April's upcoming wedding creates an uncomfortable situation for Stephanie and Jackson.
As Callie is faced with a malpractice suit, her supportive father (Hector Elizondo) visits and shares a secret; past details about Callie and Arizona's marriage are revealed.
A betrayal intensifies the issues between Cristina and Meredith; Matthew and April make a decision about their relationship; Bailey faces difficulties with Ben's return.
Costumed patients create a challenge for the doctors; Derek and Ben work on a new surgical technique; Richard asks a resident to perform his next surgery, angering Bailey.
Callie and Derek collaborate on a brain mapping project; Meredith thinks about continuing her mom's research; Shane's guilt persists.
Meredith struggles to balance her roles as a surgeon and a mother when she returns to work; Stephanie tries to impress Jackson's mother; Jo becomes overly involved with a patient.
Series creator Shonda Rhimes discusses her inspiration for the series and writing & casting the show.
Jackson's almost death prods April into telling him her true feelings.
Actress Sandra Oh (Dr. Cristina Yang) talks about her audition and lends insight into her character.
Bailey thinks no matter the risk, they need to operate on Richard. Letting the condition get worse is worse than not operating on him at all.
The board has passed a new "No Fraternizing" policy.
Jackson admits that he thinks April's faith and beliefs are ridiculous.
Callie and Arizona decide to flip a coin to see who will carry their child. Will Callie get pregnant? Or will Arizona?
Behind the scenes of Grey’s Anatomy: The Music Event, airing March 31st.
Remember The Time: Sneak Peek
Grey's Anatomy sneak peek.
Arizona never forgave Callie for amputating her leg.
Addison is cheating on Derek with Mark.
Arizona uses Alex as a sounding board for her apology to Callie. He gives her a little bit of advice, avoid the ortho metaphor and stick with "I'm sorry I'm such a slut."
Jackson's almost death has stirred something inside April. She wants Jackson, but is engaged to another man. Jackson just needs to give a reason for her not to marry Matthew and they could be together.
Alex and his dad are having a good time until family is brought up. Alex's anger boils over when learns he has a half-brother his father hasn't seen in years.
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