With Emma and Alex starting senior year of high school, Trent and Amber prepare to enter into the empty nester phase of their lives; Anna becomes a homeowner and Jonah dives into a new passion; Liz navigates her complicated relationship with Brice.

Elizabeth and Brice reveal if their baby is average sized or a little person. Anna and Emma struggle to create the perfect diaper cake as the family hosts a baby shower for Liz. Trent plans a romantic and stress-free date with Amber.