A thrilling expedition across Bolivia in search of the most venomous snakes in this remote country. The main goal is to discover a new species unknown to science: a large pitviper that has not been classified yet. It will be tracked down and filmed alive for the first time. Spanish herpetologists Juan Timms and Jairo Cuevas will carry out an intense search during which they will capture some of the most dangerous snakes on the South American continent.
