This looks pretty good. Here's what happens:
Bailey heads up a "domino procedure," in which each surgery hinges on the one preceding it. Meanwhile, Derek gets sole credit for the brain-tumor study he did with Meredith; Lexie tries to get George to notice her romantically; and Sloan counsels a desperate Callie in the ways of love.
Looks like the show is rebounding from last season, which wasn't as good as the first couple.