Lucy and her indigenous team begin their unique 50-day journey into virgin Amazon rainforest. As they enter the uncharted acres of perilous terrain, they hear the whistling of the deadly bushmaster snake. It’s one of nature’s most fearful predators and a single bite means certain death. As the brutal trek continues, disaster befalls a team member which could jeopardize the entire expedition.

British explorer Lucy Shepherd plunges further into the unknown reaches of the Amazon, coming face to face with predators such as hostile giant wasps, dangerous caiman and even more deadly snakes. With her indigenous team leading the way, they encounter uncharted, undiscovered territory that no one has ever set foot into, for a good reason. Can Lucy complete her near-impossible quest?