With the help of some surprising creatures from around the world, we'll discover how animals take to the air, defying the force all airborne animals must conquer - gravity.

In a South American jungle we'll unravel the secrets of night time 'hunt and evasion' flying, as bats and moths fight for the upper hand in one of the world’s oldest arms races. And we'll take the viewer inside a giant flock for the first time to unlock the secrets that keep half a million birds from colliding in the same air space.