Vianet Djenguet has lived half his life in Europe, yet his heart still lies in his homeland, his Congo. As a successful wildlife cameraman, Vianet is returning to his roots to reveal the beauty and majesty of his country and the people within. His journey will be one of self-discovery as he travels up the Congo River toward his ancestral home, meeting an abundance of weird and wonderful characters along the way, both animal and human. Finally, Vianet is able to give his beloved homeland the glorious spotlight it deserves and discovers an even deeper connection with this place than he could have ever imagined. "You haven't really travelled until you experience a place like the Congo," says Vianet.

Cats are among the most feared and revered creatures on the planet. They've dominated human culture since the dawn of civilization. They are one of the most studied mammals in the world, yet only now is their real identity being understood – from their incredible hunting abilities to their unique physiology and remarkable behaviors. With nearly 40 different species thriving in almost any environment, the cat is the greatest predator since the dinosaurs. Join NATURE in an epic two-part event to journey across the globe tracking down the origins of these diverse creatures. Get an in-depth look at this unique species and the evolutionary tricks and adaptations that truly make a cat, a cat.