Last night's episode saw the surgeons of Seattle Grace channel their inner "Superfreak." As we discussed in our Grey's Anatomy review, some are handling it better than others.

Things won't get any less complicated next week in "Can't Fight Biology," when a visit to the obstetrician results in some disturbing news for MerDer. Can they even have a baby?

Meanwhile, Lexie loses it when she notices Meredith and April getting closer, and Cristina continues to battle her issues, this time while house hunting. Here's ABC's first promo:

[video url="http://www.tvfanatic.com/videos/cant-fight-biology-promo/" title="Can't Fight Biology Promo"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.