Firenze and his teammates have come to one of the most deadliest jungles in Brazil in order to do some research work related to snake venom. What they don't know is that the "almost" extinct snake specie is also the most poisonous.Then they find out that their teammate is dead. They are devastated by the news. They think the worst is behind them when they succeed in getting the venom. Little did they know that worse was yet to come...