In this episode, Steve discovers just what it takes to be a terror from the skies - and it's a wild ride. He starts by strapping himself into one of Britain's fastest wind tunnels, where he goes head to head against Microraptor. Then he goes green - literally - as he hitches a ride in a stunt plane. Finally, he takes on the biggest flying animal in history - Hatzegopteryx - where Steve meets another epic blast from the past.