Playing with Nuclear Fire' - In March 2011, the Tohoku earthquake in Japan created a tsunami that killed some 16,000 people and crippled the Fukushima Daiichi nuclear power plant. In the aftermath, the government and TEPCO, the plant's operator, withheld information about the extent of the damage. Three years later, citizens and the international community are left wondering if Japan really does have the situation under control, as the government is insisting, or if the danger is far greater than anyone is willing to admit. 'No Man Left Behind' - It's estimated that over a quarter million vets from recent wars have sought treatment for PTSD. Despite these statistics, veterans often face an uphill battle to get treatment, receiving inadequate attention and, most dangerously, overprescribed narcotics and other pharmaceuticals. Ryan Duffy meets veterans struggling with mental illness and addiction.

In the days of the Mayas, cenotes – deep, natural pits on the Yucatan peninsula - provided the only means of obtaining drinking water. But in the mythology of this advanced civilisation, these waterholes and caves were also the entrance to Xibalba – the underworld. All deceased were obliged to pass through Xibalba and wait there until they were called into heaven. It was a place in which one made sacrifices to the gods – objects of daily life, as well as bloody, human sacrifices. To this day, the relics of these acts are still in place preserved underwater for more than a thousand years. The entrance to the underworld begins at a dirty waterhole in the middle of the Mexican jungle overgrown and barely recognisable. But immediately after entry, a hall of breath-taking dimensions and beauty is revealed. As if they were sculptures, stalactites and stalagmites lend the underwater cave an almost sacred ambience. By now, one has succumbed to the fascination emanated by the world’s largest underwater cave system. We accompany four professional research divers to Yucatan – a team of specialists, able to squeeze their bodies through crevices and holes, barely larger than their bodies and who master dives that would push even the most experienced divers to their limits. With them, we penetrate worlds only a few people have ever ventured into. We encounter the remains of human victims, prehistoric fireplaces and primeval animal skeletons and undertake a dive, which takes us from the primeval forest to the open sea. We then enter Xibalba – the place of myths and the dead. In the days of the Mayas - a voyage of no return. Today, this is one of the greatest challenges one can face as a diver – the hidden world of the underwater caves of Yucatan – all filmed in 3D.

Visit the planet most like Earth. There is a discussion of what life on Mars would be like and about the life forms that could've evolved there

In the final challenge of the game of life, raising offspring is the ultimate prize. Continuing the line through the next generation, is the next best thing to immortality. But it’s far from easy... Some parents must risk their own lives for their offspring.

The story of how an eccentric French shop keeper and amateur film maker attempted to locate and befriend Banksy, only to have the artist turn the camera back on its owner with spectacular results. Billed as 'the world's first street art disaster movie' the film contains exclusive footage of Banksy, Shephard Fairey, Invader and many of the world's most infamous graffiti artists at work. No director or screenwriters are listed in "Gift Shop's" credits, just the words "A Banksy Film." Banksy is a graffiti artist with a global reputation whose work can be seen on walls from post—hurricane New Orleans to the separation barrier on the Palestinian West Bank. Fiercely guarding his anonymity to avoid prosecution, Banksy has so far resisted all attempts to be captured on film. Exit Through the Gift Shop tells the incredible true story of how an eccentric French shop keeper turned documentary maker attempted to locate and befriend Banksy, only to have the artist turn the camera back on its owner – with spectacular results. The film contains exclusive footage of Banksy, Shepard Fairey, Invader and many of the world's most infamous graffiti artists at work, on walls and in interview. As Banksy describes it, "It's basically the story of how one man set out to film the un—filmable. And failed."

Hawking is the extraordinary story of the planet's most famous living scientist, told for the first time in his own words and by those closest to him. Made with unique access to Hawking's private life, this is an intimate and moving journey into Stephen's world, both past and present. An inspirational portrait of an iconic figure, Hawking relates his incredible personal journey from boyhood under-achiever, to PhD genius, to being diagnosed with Motor Neuron Disease and given just two years to live. Despite the constant threat of death, Hawking manages to make many remarkable scientific discoveries and rises to fame and super-stardom. Hawking - a remarkable man, and a remarkable movie.