When Willie takes a business trip to Scotland to expand his duck call business, he brings the entire family along so they can reconnect with their Scottish roots. But when Willie organizes a bus tour to trace his family heritage, he discovers much more than he expected. Meanwhile, Jase brings a group of people to the Highland Games and winds up participating, while Jep and Jessica try to sneak away for a romantic getaway, only to find themselves with Uncle Si in tow.