Maggie's decided that Lori needs to get back to Hershel -- there's too much blood, which she figures means Lori isn't fully dilated. "I know what it means. And I'm not losing my baby. You've gotta cut me open," Lori says. Maggie argues that she can't without anesthetic or equipment. "Carl has a knife," Lori reminds her, like that's a perfectly reasonable solution. Maggie says Lori won't survive, but Lori insists that her baby has to. And besides, Lori kind of sucks anyway.
In Woodbury, Andrea has just told Michonne that they're not leaving today -- maybe tomorrow or the next day. Michonne seems pretty disgusted. And who can blame her? All this zombie-killing going on upstate and she's stuck in Pleasantville instead of getting her slayer on.
Maggie lifts Lori's shirt to see the old C-section scar that ultimately led to so much of the misery and heartbreak of the previous season, and Lori tells Carl to take care of his dad and his little brother or sister. "You are going to beat this world. I know you will. You are smart and you are strong, and you are so brave, and I love you." She makes him promise to always do what's right, because it's so easy to do the wrong thing. And she would know. "So if it feels wrong don't do it. If it feels easy, don't do it. Don't let the world spoil you." Shit, even this world does that, sans zombies. But take off the stupid hat already, kid. They hug and exchange I love yous while Maggie watches and cries, and then Lori tells Maggie that she has to take care of her when it's over. "It can't be Rick." Carl hands Maggie his buck knife, and Lori breathes, "Good night, love. I'm sorry." And in this deeply tragic and traumatic moment, Carl has managed to put his hat back on.
Maggie slices open Lori's belly. Mercifully, if not conveniently, Lori passes out after only a few seconds of screaming and with Carl's help, Maggie manages to slowly fumble the baby out alive. Carl gives Maggie his outer shirt to wrap the squalling baby in, and Maggie says they have to go. Carl reminds Maggie that they can't leave Lori here like this or she'll turn and pulls out his gun. "She's my mom," he insists when Maggie protests. While Maggie turns away, Carl flashes back to a moment with his dad in the hayloft, where Rick gave him the gun and told him, "No more kid stuff. People are gonna die. I'm gonna die. Mom. There's no way you can ever be ready for it." Back in the present, Carl kneels and hugs Lori's body. At the door, Maggie looks and sees the walkers leaving, because they've gotten either bored or deaf and turns back just in time to hear the loud gunshot echoing in the room. Well, that should bring them back. Carl walks past Maggie, not looking at her or his new sibling, his face stony. If he turns back into an asshole I'm going to be so pissed.