A pair of superfans use knowledge they learned from their couches to take on the harsh elements deep in the Amazon rainforest. Meanwhile, a tribe of four struggles against constant threats in a dangerous African kill zone.
By entering your email address, you agree to our Terms of Use and acknowledge the Privacy Policy. discovery and its affiliates may use your email address to provide updates, ads, and offers.
To withdraw your consent or learn more about your rights, see the Privacy Policy.