The guys take John Luke golfing and dispense marital advice prior to his engagement party; Kay and Si tag along when Kori shops for engagement presents.
Jase and the guys plan a fireworks extravaganza for the Robertson family's Fourth of July barbecue; Uncle Si becomes the subject of an exhibit at a local military museum.
Jase and the guys repaint old duck decoys in an attempt to trick Phil; Willie takes on Kay's club in a bowling challenge.
Jase and the guys utilize their skills at removing pests from other people's property; Sadie and John Luke are offered summer jobs at Willie's diner, but must first undergo training to become good employees.
Office jokesters Willie, Jase and Jep are volunteered to help Alan at the church; Korie gives Kay a surprise class with famous artist Pierre Henri Matisse.
Martin's bachelor party celebration at a hunting cabin gets interesting when the guys uncover an assortment of antique black powder weapons; Kay's dream of owning a petting zoo comes true.
After Uncle Si has a brush with death, he decides to create a bucket list; Kay tries to prove that she graduated from high school.
When Duck Commander sponsors a NASCAR race, Jase and the guys attempt to work as a pit crew; Willie and Korie challenge John Luke and his fiancée to a tennis match.
John Luke Robertson and Mary Kate McEacharn are about to get married. Guests from all over the world show up for the momentous ceremony.