Back in the present day, Anne's still screaming. "She's fully dilated," says Lauren, who became an obstetrician when no one was looking. It appears Derek's going to have to deliver this kid.
So of course, he does, and it's fine, and Lauren brings the little purple thing over to her mother who smiles and has a look, and then lays her head back down and dies. Just like that. Lauren's face gets lumpy and she leaves.
In 2027, it looks like the daylight return to Serrano Point was uneventful. At any rate, if anything happened, we don't get to see it. All we get is a dialogue-free slow-motion scene of Derek, Jesse and Sydney being greeted by Hazmat suit wearing soldiers, including General Perry, who gives Derek the Solemn Nod of Respect.
In the present day, Derek pulls a sheet over Anne's head. Next to him, Lauren rocks little baby Sydney. Lauren, I hope you're able to lactate.
Back in 2027, Derek and Jesse are side by side in field hospital beds. Jesse asks Derek if he knows what Oscar Wilde's last words were. "'Either the wallpaper goes, or I do.'" Derek's too busy having trouble breathing to appreciate Wilde's last perfect quip to give a shit. "I thought it'd be over by now," he says. Jesse, in the same difficulty he is, tells him he's ready for it. Nuh-uh, says Derek. "Then what were you doing when I found you outside Eagle Rock?" she says. "I think ... I was waiting for you," he says. Smooth. His chances of getting laid just skyrocketed. Assuming he lives. And assuming Jesse lives, which is looking less likely as she starts hacking up a lung.
A couple of Hazmat-suit wearers come in to inject some stuff into their IV lines. Derek looks up and sees Lauren. "Thank you for saving my sister," she says. Wow, she hasn't aged a day. Must be the leisurely life in a post-apocalyptic hell-world.
In the present day, Derek's holding Sydney now. "I've been where you are," he tells Lauren. "There are days when you don't think you can go on, but you will. Because she needs you to. We all do." She says even if they kill that thing, there are more out there. "Does it ever end?" she asks him. He admits he doesn't know. But that is what they're working for. He invites them to come stay with them. I hope he means at Jesse's place, because it's not like he ever hangs out at the Connor compound anymore.
Lauren says she doesn't know, and takes her sister back. Breathe in that new baby smell! For anyone who doesn't know, and I didn't know until my daughter was born, babies smell really, really good. Well, most of the time, anyway.
Six months ago, Sarah, Cameron and the Fields have made it far enough to take a break at a diner. Lauren asks Sarah when she got it: "When this happened to you, how long 'til you knew everything was going to be different?" "Right away," says Sarah. Lauren looks over at her parents, who are in remarkably good spirits. "I don't know if they get it," she says. Sarah says they'll need her help. "They always have," says Lauren, and Sarah leaves while Lauren goes over to sit with her parents in the booth.
And six months later, it's all gone to hell, huh? Derek gets on the phone with Sarah, asks if she got the triple-eight. Is she sure? She's sure. He tells her the baby's fine. "Girl's a tough kid. I told her she could come stay with us. ... Well, it can't get much worse, can it?" Plus, she can kick in some rent money!
He heads back into the room with Anne's dead body, but Lauren's not there. She's left her St. Jude's medallion on her mother's corpse. "Lauren, you forgot your medallion! Lauren! You forgot your -- I'll just hang on to it! Call me!"