To reveal the secrets of the most mysterious of all big cats, a crack team of conservationists hire one of the U.S.'s finest trackers, Boone Smith, to locate, capture and film wild jaguars using all means necessary. Jaguars are notoriously elusive, and consequently the least studied of all big cats. Chance sightings and occasional captures have helped explain some aspects of jaguars' lives, but mostly they operate beyond the reach of scientists. Boone's mission clashes his experience in the wilderness of the Rockies with the hazards of Belize's jungles and Brazil's swamps. He needs to learn quickly from local experts and draw deeply on his own expertise to achieve their goal: to reveal startling new insights into the hidden lives of these magnificent creatures.

Expedition leader and wildlife filmmaker Martin Dohrn leads an expert team of night filming specialists into the jungles of Costa Rica on the hunt for Central America's big cats. Pumas, ocelots and the elusive jaguar all live in the dense tropical forest but filming them is far from an easy task. Starlight, thermal and infrared cameras are deployed throughout the forest, together with remotely operated cameras suspended above and on the forest floor. With the forest wired for night vision, it's only a matter of time before the team start to discover mysterious big cats.

Return of the Clouded Leopards follows the work of wildlife photographer Sandesh Kadur and Wild Life Trust of India Vet Dr Bhaskar Choudhury, as they undergo the unique rehabilitation of two orphaned clouded leopard cubs to their natural jungle habitat. The cubs are hand reared, and taught to live independently before being released back to the jungle. A year later, the team unites to search for the cubs they set free. Shy and elusive, even cat specialists know little about the clouded leopard's habits, can they be taught to live in the wild again?