
Addison returned to Seattle Grace to perform an operation and was taken aback by all of the changes in her old co-workers' lives. Meanwhile Meredith and Derek's clinical trial has its first patient, and Rebecca/Ava returned with shocking news for Alex.
But never is there a dull moment in Grey's Anatomy, we really saw another side to Alex, shame his being played.
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this was a great ep...i miss addi.