Message on a Bottle

In the coldest waters surrounding Newfoundland's rugged Fogo Island, "people of the fish"—traditional fishers—catch cod live by hand, one at a time, by hook and line. After a 20-year moratorium on North Atlantic cod, the stocks are returning. These fishers are leading a revolution in sustainability, taking their premium product directly to the commercial market for the first time. Travel with them from the early morning hours, spend time on the ocean, and witness the intricacies of a 500-year-old tradition that's making a comeback.

Britain is undergoing a domestic heating revolution - heat pumps are replacing gas boilers and apparently everyone should prepare to put one in their homes. Alexis Conran investigates whether these devices live up to the hype, examining the pros and cons to help consumers choose the best option. Plus, tips on maximising savings.

Bright Green Lies investigates the change in focus of the mainstream environmental movement, from its original concern with protecting nature, to its current obsession with powering an unsustainable way of life. The film exposes the lies behind the notion that solar, wind, hydro, biomass, or green consumerism will save the planet. Tackling the most pressing issues of our time will require us to look beyond the mainstream technological solutions and ask deeper questions about what needs to change.

THE LONELIEST WHALE is a cinematic quest to find the “52 Hertz Whale,” which scientists believe has spent its entire life in solitude calling out at a frequency that is different from any other whale. As the film embarks on this engrossing journey, audiences will explore what this whale’s lonely plight can teach us — not just about our changing relationship to the oceans, but to each other. Executive Produced with Leonardo DiCaprio and Adrian Grenier.

The globe learned on December 26, 2004, that tsunamis can bring death and devastation to the world's coastlines. The product of undersea earthquakes and volcanic eruptions, tsunamis can race across oceans at more than 500 miles an hour, leaving a huge wake of destruction when they hit shore. Because it is difficult for scientists to predict how large these massive waves can be, tsunamis are one of the least understood of nature's forces, and one of the most dangerous. With insight from some of the scientific community's foremost researchers, and vivid accounts from past tsunami survivors, Tsunami: Killer Wave depicts nature at its most extreme, profiles the efforts being made to curb its effects, and illustrates the financial, physical and emotional toll it can leave on its victims.

Diving Deep: The Life and Times of Mike deGruy, tells the story of Mike deGruy, an irrepressibly curious and enthusiastic underwater filmmaker who died suddenly in 2012. DeGruy filmed the oceans for more than three decades becoming as famous for his on camera storytelling as for his glorious, intimate visions of the sea and the creatures who live in it. Inspired to share his legacy as a filmmaker and storyteller, and to spread his mission for protecting the ocean, his wife and filmmaking partner Mimi deGruy returned to the edit room to produce Diving Deep: The Life and Times of Mike deGruy.

Riding Giants is story about big wave surfers who have become heroes and legends in their sport. Directed by the skateboard guru Stacy Peralta.

The Cove tells the amazing true story of how an elite team of individuals, films makers and free divers embarked on a covert mission to penetrate the hidden cove in Japan, shining light on a dark and deadly secret. The shocking discoveries were only the tip of the iceberg.

Exploring the life and legacy of actor Paul Walker, the Southern California native who cut his teeth as child actor before breaking out in the blockbuster Fast and Furious franchise.

Plastic: The Real Sea Monster

In 1967, experimental filmmaker Jorgen Leth created a striking short film, The Perfect Human, starring a man and women sitting in a box while a narrator poses questions about their relationship and humanity. Years later, Danish director Lars von Trier made a deal with Leth to remake his film five times, each under a different set of circumstances and with von Trier's strictly prescribed rules. As Leth completes each challenge, von Trier creates increasingly further elaborate stipulations.

This landmark series explores a vast ocean that stretches nearly 10,000 miles, from Arctic to Antarctic and from sun-drenched tropical reefs to crushing abyssal depths. Over three programmes it reveals the amazing, surprising and resilient inhabitants of the Atlantic, both animals and people, as they pit themselves against the world’s wildest ocean.

The largest predator on the planet, the sperm whale, is your host for an amazing exploration of the final frontier – the world at the bottom of the ocean. From the makers of the Walking With series comes this incredible marine tour, in which you'll witness a rarely seen world of hidden mountain ranges, majestic canyons, volcanoes and the beautiful and often deadly creatures that inhabit the deep sea.

The devastating impact of industrial and military ocean noise on whales and other marine life.

Go to the Big Island and hover above erupting craters at Hawaii Volcanoes National Park, watch flowing orange lava ooze across charred rock and steam billow from the Pu'u 'O'o Vent. Glide over Maui's Haleakala National Park and discover the diversity of Hawaiian landscapes. Island hop to Lanai for spectacular beaches. Visit Pearl Harbor from above and the memorial sites before exploring the rest of Oahu. Narrated by Tom Skerritt

Back to the Titanic documents the first manned dives to Titanic in nearly 15 years. New footage reveals fresh decay and sheds light on the ship’s future.

Documentary about the life of explorer Jacques Cousteau.

Ocean Voyagers explores the familiar themes of motherhood and parenting in a world as unfamiliar as it is breathtaking. Featuring a precocious newborn humpback calf and his enormous 40 ton mother, we are taken on a journey of discovery into their world.

From the banks of the Bahamas to the seas of Argentina, we go underwater to meet dolphins. Two scientists who study dolphin communication and behaviour lead us on encounters in the wild. Featuring the music of Sting. Nominated for an Academy Award®, Best Documentary, Short Subject, 2000.

On a hot summer day, a young man from Philadelphia goes for an afternoon dip; when he is 40 feet from shore he gets attacked and dies; five days later, the Bell Captain at a popular beachside resort is also attacked.