Discovery Channel Pictures

Steve Irwin, AKA The Crocodile Hunter, has avoided the death-roll and saved a croc from poachers. But what he doesn't know is that the crocodile has swallowed a top secret U.S. satellite beacon, and the poachers are actually American special agents sent to retrieve it.

Documentary on the Shackleton Antartic expedition. A retelling of Sir Ernest Shackleton's ill-fated expedition to Antarctica in and the crew of his vessel 'The Endurance', which was trapped in the ice floes and frigid open ocean of the Antarctic in 1914. Shackleton decided, with many of his crew injured and weak from exposure and starvation, to take a team of his fittest men and attempt to find help. Setting out in appalling conditions with hopelessly inadequate equipment, they endured all weather and terrain and finally reached safety. Persuading a local team of his confidence that the abandoned team would still be alive, he set out again to find them. After almost 2 years trapped on the ice, all members of the crew were finally rescued.

In this documentary, Bear Grylls takes us on a journey through the most extreme version of the world's highest and most legendary peak: Mount Everest. Several leading figures in mountaineering and extreme sports, for whom a standard ascent is no longer enough, transform Everest into a laboratory for extreme challenges. Told through archival footage and reenactments, this elite group seeks new forms of performance, attempting to ski the slopes, snowboard down them, hang-glide or paraglide above the summit ridge, open new routes on more technical and exposed faces, and break climbing records. The documentary also highlights the essential role of the Sherpas, the colossal logistics behind each attempt, the explosion of commercial expeditions, and the moral debate surrounding the ever-increasing risks involved in breaking records or achieving unprecedented feats.

Learn about the king of the dinosaurs, the T-Rex. This was the greatest meat-eating machine of the dinosaur era.

Here is an account of how the cross of Christ came to be the symbol and icon it is today. It presents a close-up look at an inscribed piece of wood, believed to be the actual headboard of Christ's cross.