Secrets from Ellis Grey's past come to light.
Jo becomes jealous of Alex and Meredith's friendship.
Maggie tries to make a positive impression at the hospital.
On the season premiere, Meredith struggles to maintain normalcy.
A sexually transmitted disease affects members of the hospital staff.
Meredith becomes disenchanted with her ignorance of parts of Derek's life.
Derek and Meredith try to be discreet after spending the night together.
Alex works hard to gain the trust of Annie, a patient with a large tumor.
Meredith believes she erred during surgery and endangered her career.
Cristina's encounter with a former nurse changes her forever.
The emergency room fills with patients from the annual bike-messenger race.
Meredith puts her career on the line to save a newborn
Meredith Grey and four other surgical interns try to balance life and work.
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