For the last four years I’ve been investigating the limits of human endurance in harsh environments. After all, our ancestors crossed frozen mountain ranges and endless ocean miles without a whisper of modern technology. So why can’t you? This trailer is just a taste of the incredible journey that took me to the top of Mt. Kilimanjaro without a shirt, meditating on the banks of snowy rivers in Poland and into the training gyms of top athletes, all to understand what makes us human.