Erin, Whitney, and Carlin have teamed up to start an online store selling casual, modest dresses. Starting a business from the ground up isn't easy, however, and it will take everything they have to not give up before they get started. Meanwhile, Kelly Jo takes Addee, Ellie, and Callie out for a fun girl's day at an adventure park. Later, the family throws Carlin and Evan an epic wedding shower that turns emotional when the bride-to-be gets sweet advice from her family and in-laws. And after spending a year renovating the church, the family joins together to celebrate the very first service in the beautiful new space.