Follow along as this documentary series uncovers the secret lives of big cats, equipped with the latest technologies and scientific research to quite literally draw them out of the shadows. From the iconic lion, cheetah, leopard and tiger, to the lesser-known - but just as menacing, in their own ways - serval, ocelot and even Pallas's cat, a breed that thrive in the remote grasslands of the Mongolian steppe - this series delves deeper than ever before into the elusive world of these majestic animals.