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The giant squid is a creature of legend and myth which, even in the 21st century, has never been seen alive. But now, an international team of scientists thinks it has finally found its lair, 1,000 metres down, off the coast of Japan. This is the culmination of decades of research. The team deploys underwater robots and state-of-the-art submersible vessels for a world first - to find and film the impossible.

Groundbreaking documentary which follows a Japanese-led team of scientists as they attempt to shed light on the mysterious world of deep sea sharks. Only 50 specimens of the newly discovered 'megamouth' have ever been sighted. Over four years, scientists and film crews voyaged in midget submarines into the depths of Suruga Bay and Sagami Bay to film them. Prehistoric 'living fossil' sharks such as bluntnose sixgill sharks, goblin sharks and frilled sharks also lurk in the depths. As part of the investigation, a sperm whale carcass was placed at the bottom of the sea to attract these sharks, which were then studied and observed from the submersible vessels. Revealing in detail the previously unknown behaviour of deep sea sharks, the film unravels another of the intriguing mysteries of our planet's biodiversity.

After 40 years of protection, Grey wolves were recently de-listed federally from endangered species act and their fate was handed over to state legislatures. What ensued was a 'push to hunt' in wolf country across the United States. Filmmaker Julia Huffman travels to Minnesota and into wolf country to pursue the deep and intrinsic value of brother wolf and our forgotten promise to him.

Luminous beings, creatures with their own internal light, enchant and astonish us. Anyone who has seen a firefly or a glow-worm cannot help but fall under their spell. The sea at night sparkles as millions of luminous plankton reveal the shapes of dolphins in a truly magical light show. Join Sir David Attenborough and a team of the world's leading scientists and deep sea explorers on a quest to reveal the secrets of living lights.

The passenger pigeon, the most abundant bird species in North America for thousands of years, became extinct by human hands in a geologic heartbeat. Its story remains relevant to conservation challenges today, and there are even plans for its possible revival. Rare archival material, CGI animation, and aerial cinematography combine to recreate the awe-inspiring nature of these birds.