Jon and Etta Smith's build is under way, and they're working to balance ranch and build duties. After a slow start waiting for pre-fabricated wall panels, Jon and Etta finally have what they need to kick this build into high gear. In Montana's northwest, they have little time to waste, winter is severe, and it's coming fast. So Jon and Etta are working hard to get their house dried in as soon as possible. Will wrong measurements derail their plans?