The unlikely duo undertakes six incredible journeys in a bid to find out how the endangered animals Adams first encountered are faring.
From the steamy jungles of the Amazon to the ice-covered mountain tops of New Zealand, and from the edge of a war zone in Central America to sub-tropical paradise in the North Pacific, their route spans the whole planet.
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Along the way, they search for some of the weirdest, most remarkable and most troubled creatures on Earth.
A large, black, sleepy animal easily mistaken for an unusually listless mud-bank, a parrot with a song like an unreleased collection of Pink Floyd studio outtakes, a rhino with square lips, a dragon with deadly saliva, an animal roughly the length of a Boeing 737 and the creature that looks more likely to emerge from the cargo doors of a spaceship.
Hopefully this won't be the last chance we get to see these astonishing animals.