The untold human stories behind some of the world’s greatest disasters.

The very first submarine, which legend claims lurked beneath New York Harbor during the American Revolutionary War. The small ships that rescued thousands from Dunkirk. The destroyer that forced the easing of the Cuban Missile Crisis. Over the centuries, conflicts have prompted advances to ship designs, making vessels stronger, faster, smarter, and capable of changing the course of wars. Join us as we examine the world’s greatest Combat Ships, and reveal how they shaped world history and inspired men and women to acts of incredible courage.

Every year, two million zebras and wildebeest thunder along the Serengeti plains on a pilgrimage to the grassy highlands. Witness the largest mass migration on the planet, a high-stakes journey fraught with danger and drama.

The amazing thing about nature is the number of ways it continues to surprise us – and in the case of these unique creatures, it appears we’re barely scratching the surface. Spend some time in the company of nature’s evolutionary mavericks.

Some of the most coveted and valuable treasures from history’s greatest games and players are missing or misidentified. It’s up to the Sports Detectives to find the items and get to the truth. Follow private investigator Kevin Barrows and sports reporter Lauren Gardner as they travel the country on the hunt for Ali’s missing Olympic gold medal, Jim Craig’s Miracle on Ice flag, Dale Earnhardt’s first racecar, and other legendary items.

Mighty Planes explores the art and science of aviation, on planes that soar to faraway places on astounding missions. From preparation, loading and take off, through the journey and to the landing and unloading, viewers will experience the high-stakes and high-stress jobs through the eyes and lives of the characters that make it all happen. Featuring the genius of flight technology with the aid of high-end CGI, shot in HD, and recorded in 5.1 surround sound, MIGHTY PLANES captures all the action as it happens.

Harrowing stories of tragedy and triumph are brought to life through official reports, transcripts and interviews with the pilots, air traffic controllers and lucky survivors of history’s most terrifying crashes. Widely considered to be the safest form of travel, air transportation is still in its infancy and when midair calamity strikes, the results are often catastrophic. From the cockpit to the cabin, from the control room to the crash scene, we uncover just what went wrong.

Behind many million-dollar inventions are priceless stories of inspiration, controversy, triumph, and tragedy. Explore inventions large and small, lifesaving and life-taking, scary and playful, and meet the men and women who dedicated, and often risked, their lives to follow their vision and ultimately change the world.

A half-hour documentary series set in a unique Arctic town with true northern exposure that provides a front-row seat for some of the closest human-bear encounters ever seen on television.

Fascinating insights in the day and night life of some of America’s most famed metropolises. Along with showcasing each city’s iconic landmarks and often-surprising history, the series’ 4K cameras capture a bird’s-eye perspective of the frenzy of work and play that make each city so distinctive.

The waters bordering the Arabian Peninsula are home to a host of unique marine animals: from predators like zebra sharks and giant stingrays, to camouflage kings like the cuttlefish and sea horse, to occasional visitors like the migrating whale shark and hawksbill turtle. Wade into this little-seen world of ocean oddities.

Hell Below is an event-based series charting the stealth game of sub sea warfare, tracking the dramatic narrative from contact to attack of the greatest submarine patrols of World War II. From the rise of the Wolfpack to the drive for victory in the Pacific, we profile the strategic masterminds and the rapid evolution of technology and tactics, as the threat of undersea warfare brings every sailor’s worst nightmare to life. Expert analysis and stock footage are woven with narrative driven re-enactments filmed on authentic Second World War era submarines to place the characters at the heart of the action.