Simon's ex-girlfriend claims she is pregnant, and as Simon tries to figure out how to tell his parents, he does not realize that there is more to the story. Eric, Annie, and the twins are on their way back from visiting Annie's stepmother, and they reminisce about old times they have shared together. A pregnant Lucy collapses at the grocery store while shopping with Matt, and they cannot seem to track Kevin down. Lastly, Ruthie is visiting Mary, Carlos, and baby Charles in Puerto Rico, but she isn't exactly having a good time.

Matt takes Lucy shopping so that she is out of the house. Annie prepares for the baby shower while she is gone. At the store, Lucy goes into labor. Matt & Lucy are stuck in an elevator. Lucy gives birth to a girl.