Three former special forces operatives take scientists to an active volcano, into the uncharted rain forests of Papua New Guinea, and through a Bolivian jungle.
Rookie Chris leads the search for a Caiman following an accident that forces Nick out of Bolivia; Gary must win passage through local tribes in Papua New Guinea; a lightning storm traps Shaun's team on an active volcano in Ecuador.
In Papua New Guinea, Gary ascends into the jungle canopy to search for new plants; in Bolivia, rookie Chris and team confront a giant caiman on the water; in Ecuador, Shaun takes his team up a crumbling landslide to reach the volcano.
As mission time runs out, Shaun and team come under volcanic fire in Ecuador. Gary must stop down when Bat Expert Rob goes missing in the jungle. Rookie Trailblazer Chris must rethink how to catch a caiman when fear takes over his scientists.
With less than 48 hours left, Shaun dodges volcanic bombs in Ecuador. In Bolivia, rookie Trailblazer Chris baits a giant caiman. The Papua New Guinea mission derails when scientist Rob gets lost.
Shaun risks life attempting to place sensors on an active volcano. Rookie Trailblazer Chris wrestles a black caiman. Gary heads 10 miles into a mountain cave to find rare bats.
