After a power black-out, the hospital is thrown into utter chaos... because the season hasn't been hard enough with the loss of Mark and Lexie as it is. Meredith of course, goes into labour during the black-out, because what's a pregnancy without a traumatic delivery? Jackson bravely dives into a wreckage to save a child and much to everyone's dismay (especially April's) the vehicle blows up. Thankfully Jackson is safe, and April's fiancé is definitely suss now. Meredith gives birth to a baby boy, and as he's whisked away loses consciousness due to a previous injury - not before giving Shane explicit instructions on how to save her. Shane succeeds, Meredith is OK, and her and Derek name the kid Bailey. A dramatic episode but a happy ending.