Roseanne and Dan are delighted that Darlene, David and their new daughter, Harris Conner Healy, will be staying with them. D.J. has grudgingly given up his room for them and is moved into the basement. It's just a day of warmth, happiness, and celebration in the Connor house. Family and friends are gathered together, to celebrate the new addition. Everyone comes by to welcome Harris home: Bev, Leon, Scott and Nancy. Each person takes a turn upstairs, having a little one-on-one time with Harris. During the visits over the crib, it is revealed that Mark and Becky are expecting as well. Mark wants to spread the news, but Becky opts to hold off, and let the day be about Darlene.
Darlene is apprehensive about overstaying their welcome, thinking Roseanne doesn't really want them staying there. She questions Roseanne about it. Roseanne lets her know that she would like them to live with her at the house forever. Darlene is relieved, and would like that as well.
Among the party atmosphere, Leon and his significant other make an announcement. They will be adopting little Nadia, a three-year-old girl from Romania that needs a family. They are congratulated by all, even Bev whom apologizes for her behavior at Thanksgiving.
And as the extended family gathers around the kitchen table for take-out food, Roseanne looks at each one of them and reflects.
As she reflects she reveals that she has really been writing a book about her life and that is what we have been watching. In her "book" whatever she didn't like about her life, she changed. In "reality" Dan actually died from the heart attack. The family never won the lottery. She switched the couples around, so Mark and Darlene were actually dating, and David and Becky were dating. And it is Jackie who is gay, not Bev.
She also says that Jackie is her rock and she wouldn't have gotten as far as she did without her. She says regarding DJ, that a lot of people have called him a nerd, but a lot of times nerds are just artists. She says Leon isn't as cool as she made him and that Scott actually was a probate lawyer she had met and fixed up with Leon. She says that Nancy was also her hero as she got out of her marriage and found a new strength in spirituality. Then, at the final moments, after everyone fades away, we find Roseanne in the basement, in her old writing room reflecting over her book. She then walks up stairs and through the old kitchen and walks into the old living room, and sits on their old couch.