Erin and Chad are teaming up and combining skills to work on a project together! Erin's interior design skills have been put to good use when it comes to her siblings' homes, but does she have what it takes to renovate a baby room for a new client? Meanwhile, Kelton gets a glimpse into his future when he spends some time with Bobby and baby Kade. Will this "Dad in training" master diaper duty? And in between earning her cosmetology degree, Katie's also working on getting her pilot's license. But when she's up in the air, can she impress big brother Nathan with her in-flight training skills? And later, practice makes perfect! Gil, Kelly Jo, and Carlin have completed their first dance lesson, but now it's Evan and Erin and Chad Paine's turn to join in on the fun! But during the group lesson, can they keep up with the instructor's smooth moves and learn a ballroom dance routine before the wedding date?

Whitney and Zach are ready to share some happy news with the rest of the family – they have baby number 3 on the way! Whitney wants to surprise everyone, including Zach, with the gender and enlists Kelly Jo to come up with a covert plan. Josie and Kelton are busy decorating a nursery in Josie's signature "boho-chic" style and Carlin hits a big milestone before her wedding: college graduation! Later, Carlin and her bridesmaids go to see her pastel colored bridesmaid dresses in person, but will the bride-to-be cry tears of joy or disappointment?