"Off the Map"
Mark "McSteamy" Sloan finally dies after his plane-crash coma. Oh, and then—oops!—Arizona gets her leg amputed.
"Flight"
Lexie dies after the shocking plane crash.
"This Magic Moment"
Meredith and Derek become parents to adopted daughter Zola.
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"Dream a Little Dream of Me (Part 1)"
Cristina gets stabbed by an icicle.
"Sanctuary"
Meredith watches as a gunman shoots Derek.
"Stairway to Heaven"
While getting frisky in an on-call room with Lexie, Mark breaks his penis.
"Song Beneath the Song"
A pregnant Callie goes head first through the windshield. Singing ensues.
"Who's Zoomin' Who?"
Derek's wife, Addison, shows up in Seattle.
"Didn't We Almost Have It All?"
Cristina is left at the alter by Dr. Burke.
"Now or Never"
Derek and Meredith make it official and get married on a Post-It.
"Drowning on Dry Land"
Meredith drowns in the icy Seattle water.
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"(As We Know It)"
Grey's guest star Kyle Chandler blows up.
"Now or Never"
Meredith realizes that George is bus crash victim John Doe.
"Losing My Religion"
Izzie's fiancé, Denny, dies after a heart transplant.