The quest to expand the boundaries of human knowledge takes scientists to the edges of the Earth where unseen peril lurks around every corner. From the deepest and darkest rainforest jungles to the edges of active volcanos, these men and women are searching for answers to some of the world's greatest scientific mysteries. Out of their labs and into the wilderness, they place their lives into the hands of a brotherhood of elite survivalists who are sworn to keep every expedition safe, risking their lives to ensure everybody makes it in, completes their mission, and gets out alive.