Steve Backshall and his long-suffering crew return for a series of deadly encounters with animals hoping to earn a place on his hallowed Deadly 60 list. Panama is home to one of the largest and most impressive birds of prey in the world - the harpy eagle. But to track it down, Steve and the crew have to trek into a remote part of the Darien jungle. Along the way Steve chases a deadly racer snake downriver, and even faces his fears to handle some giant bullet ants.