Mary brings home a pregnant friend, Matilda, whose attitudes towards marriage upset Tom. She learns the joys of parenthood, and paternal Tom helps deliver the baby.
The family has eagerly awaited the arrival of the newest Jefferson, but the baby may catch everyone off-guard as George frantically tries to get Jenny to the hospital while trying to get word to Lionel that his wife's in labor, in the conclusion of a two-part story.
Merle's sister, Linda Mae, comes for a visit.