Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
Steve Backshall goes in search of one of Europe’s most venomous snakes: the nose-horned viper. He also hopes to track down a bear and goes deep into a cave system to find a dragon.
Steve Backshall heads to Timor Leste in search of the biggest animal to have ever lived - the blue whale. He also hopes to find the saltwater crocodile, one of the giants of land.
Steve Backshall goes searching for Patagonia’s perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.
Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.
Adventurer Steve Backshall and the Deadly 60 team pack their cold weather gear and head north to Alaska. They battle for days and nights in the freezing conditions of the frozen tundra, hoping to find polar bears to add to the list. They are rewarded with a rare sighting of a wolverine and some cheeky Arctic foxes. Steve has heard of a place where thousands of bald eagles arrive every year to feed on the spawning salmon. Keen to see them first-hand, he heads up one of the freezing rivers to get a closer look. Alaska is also home to the grizzly bear, and Steve won't be going home until he has seen one and added it to his list.
Steve Backshall heads out to find one of the UK’s greatest predators: the dragonfly. He witnesses the aerial prowess of the hobby and dives underwater with the puffin.
Steve Backshall and the team brave the intense heat of the Arizona desert as they go in search of more incredible animals for the Deadly 60 list. In order to demonstrate the awesome hunting skills of the Harris hawk, Steve becomes their prey for the day. Some state-of-the-art technology helps Steve track down deadly rattlesnakes and a real monster. It is then off to the mountains in search of a very elusive cat, the cougar. After seeing pictures captured by remote cameras, the team know the cats are there, but can they find them?
Steve Backshall heads to Oman in search of the most cryptically camouflaged animals of the underwater world. They range from leopard sharks to the octopus, and cuttlefish to a giant moray eel.