goes on and tragically on. ♪ >> god may have been demanding total submission, but he also decided in the end that a human life has more value than blind obedience. >> in the end, of course, ishmael lived, isaac lived. >> taking this journey with my own son brought these stories to life in the most profound and visceral way. it was a reminder of how personal the stories of our ancient religious texts can feel and why they can remain so powerful even to this day. coming up, from the holy land to america's heartland. so why are we headed for branson, missouri? and what can we uncover there