At the crux of every survival story is a pivotal decision point. The choices we make when the stakes are high can mean the difference between salvation and struggle, misery and hope, life and death. When it comes to dire situations in the backcountry, the options can be imperfect and the time in which to weigh them is often short. In today's episode, we witnessed the fast decision-making of three separate survivors, all at the heart of one historic and catastrophic flash flood on the Havasupai reservation of the Grand Canyon. The flood would permanently alter the landscape as well as the lives of those who were caught in its fury.