Nathan and Lesley Keith met on a military base in Kuwait, in 2006. They’re both Navy veterans, and together they served for a cumulative 27 years. In many ways, they’re well-adjusted, regular people. And on the surface they lead regular lives. But dig a little deeper, and you’ll find that the Keiths are in the middle of a serious struggle. It started in 2006, just after they came back from Kuwait.