Dan Yoder and wife Caroline are happily anticipating an empty nest as their daughter Molly gets ready to head off to college. Molly has some interesting news for them, however, and when she announces that she and her secret boyfriend Junior Hernandez are going to have a baby, they have to adjust to a new reality and meet their new family – Miguel and Lisette. When these two very different families are thrown together, it’s obvious that Dan and Miguel have the most difficult time adjusting to their new situation, while Caroline and Lisette take a softer approach.

Caroline heads to the doctor to confirm her suspicions but when she encounters Molly and Junior in the same waiting room, things get a little awkward. Then, as Joseph decides to invite his parents to the first sonogram, things get even more awkward. When Caroline later learns she is indeed pregnant, she struggles with the best way to break the news to Dan, who has been happily anticipating an empty nest. Meanwhile, Dan returns to Miguel’s boxing gym to get back into shape, and it doesn’t go well.

In a moment of wistfulness about his long lost freedom, Dan decides to purchase an RV for a little recreational family time. Caroline is not completely thrilled about the purchase and is most concerned about finding relief for her mounting nausea and intense appetite. Miguel and Lisette attend Demetrio’s Back to School Night and meet Demetrio’s sixth grade teacher Ana Nunez – who turns out to be an old flame of Miguel’s. Lisette, who is already feeling awkward about becoming a grandmother, is not happy to meet the gorgeous Ana. Meanwhile, Molly looks to her mother for advice on why Junior may be feeling less romantic now that she’s pregnant.