A Georgia couple is ready to tackle their next off-grid build: the ultimate watchtower guest house in the Blue Ridge Mountains. However, building 30 feet off the ground presents its challenges and leaves them wondering if they can complete the project.

A family of eight sets out to build an underground home in the rolling foothills of Idaho, but Mother Nature has other plans for them. Before they even pour concrete, they face a decision that will make or break their build.