Elizabeth makes a big decision about her relationship with Brice. Amber and Trent try out body painting. Anna buys a new home and starts the process of moving in. Jonah and Alex write love letters to their girlfriends.
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, Jonah dives into a new passion, Liz navigates her complicated relationship
The family takes a trampoline exercise class; after several kitchen mishaps, Anna learns to cook; Emma opens up to Liz about struggling to make friends, while Alex hangs out with twins from his robotics team.
Trent and Amber are about to become empty nesters with Alex and Emma about to start their last year in high school; Anna is now a homeowner; Jonah discovers a new passion; Liz works on her relationship with Brice.
Anna organizes a summer party at home, including some ice cream competition; Emma and Alex give Amber a surprise for Mother's Day; Trent and Amber display their new costumes and dance moves.
Trent and Amber take their first vacation ever without the kids; Anna uses her new cooking skills to make dinner for the family, and Emma looks for a summer job at a local boutique. Then, Jonah enlists his siblings to taste-test his barbecue sauce.
Alex confides in Jonah about his relationship struggles. Trent and Amber's next date night involves a game of truth or dare. Then, Jonah feels the heat as he enters his first BBQ competition.
The Johnston family engages in an ice water bucket challenge to unwind. Anna receives style suggestions from Emma and Liz for the next LPA conference. After using their workshop, the family realizes they need to get a lot of work done soon.
The Johnstons head to Austin, Texas for the LPA conference. The family holds a workshop, Alex is reunited with Allie, and Trent and Amber compete in the talent show. Back home, Liz and Brice need to share big news with their parents.
Liz surprises the family with her announcement; The siblings react over Liz's secret; Trent and Amber process the inevitable change in the Johnston family dynamic.
A large family gathering celebrates Poppy's 90th birthday. Liz and Brice announce exciting news, then go for an ultrasound to find out if their baby will be a little person or average-sized.
Elizabeth and Brice reveal whether their baby is of average or small stature. Anna and Emma try to make the perfect diaper cake as the family prepares for Liz's baby shower. Trent arranges a romantic, stress-free date with Amber.
Liz and Brice travel to Florida for a babymoon and express their concerns about the impending birth. Anna speaks out to a friend about the difficulties LP women have in the dating world. Emma prefers a pink palette as the family begins bathroom improvements.