Snake-catchers Simon Keys and Siouxsie Gillett face a deadly forest cobra that is hiding out in a tree. The forest cobra is an excellent climber, and its bite could lead to muscle paralysis in minutes — not something you want to experience ever, let alone 15 feet up a tree! But it's all in a day's work for this brave couple. They then respond to a call about a black mamba that has made its way into a man's home. Black mambas tend to get aggressive when cornered. Their venom affects both the heart and the nervous system, swiftly leading to death if you don't get to the hospital right away. But the risk is worth the reward for Simon and Siouxsie. They put their lives on the line every day in their obsession to save snakes.