Stalked by the deadliest animals including lions, spitting cobras and bull sharks, survivalists' every step could bring disaster. To make it 40 days, they must use their skills to avoid becoming prey while hunting the most dangerous creatures.

Jeff is called out for his "no hand-outs" survival strategy but refuses to back down. A new look into how the survivalists survived land, sea and each other through a free-wheeling discussion, new interviews and never-before-seen footage.