For the first time in years, Amy takes the kids to visit her family - the Knights - in Michigan. They journey to the Upper Peninsula to her parents' rustic cabin on a lake. Amy's father, Gordon, introduces his grandkids to a simpler, slower paced lif... (more)e. He takes them hiking in the woods and shows them how to shoot old-fashioned black powder muskets. During their stay, the kids learn a lot about their larger-than-life grandparents. However, the idyllic scene turns to chaos when Jacob gets a tick, and no one seems to know how to get rid of it.