Gordon Buchanan goes in search of the elusive jaguar, while Steve Backshall abseils down one of the most powerful waterfalls in the world. Meanwhile, Justine Evans climbs to the top of the rainforest trees.
Steve Backshall finds giant piranha and the long-fanged sabretoothed fish in his river survey, whilst George McGavin catches the world's largest tarantula. The climbing team begins an attempt to scale a huge unclimbed mountain.
Justine Evans searches for giant anteater, while George and Gordon struggle up a remote jungle river to find a rainforest paradise where the animals appear to show no fear of man.
