The polar regions of our planet may seem beyond the reach of most of us, but they are not beyond our influence. We, unintentionally, are changing these frozen worlds, and these changes will not just affect the poles but the whole planet. On the unforgiving frontier of climate change, polar bears, walruses, seals and penguins find their icy Edens in peril.

Ivan Orkin, the brash, white, Jewish guy from New York who made his name as one of the best ramen makers on the planet has an unorthodox story. That means no tweezer food, plenty of swear words, no slow shots of the chef communing with nature. He was a problem child, fell in love with Japan, fell in love with cooking, suffered personal tragedy, and found his reason for being and his ultimate success in Tokyo.

In this curious series, the minds behind history's most iconic toy franchises will discuss the rise (and sometimes fall) of their billion-dollar creations.
In 1977, after being rejected by Mattel and Hasbro, Lucasfilm signed with Kenner Products to have toys produced for their sci-fi film Star Wars. This was a huge gamble, as Kenner was a small toy company at the time and the negotiation process started late due to George Lucas' secrecy over the ship designs. Since then, toy sales of the Star Wars franchise have totaled to US$14 billion worldwide.

This episode tells the story of how the Emperor Constantine brought Christianity to the western world. In AD 312, Rome was in crisis. The empire had been divided into four parts, each with its own emperor who fought one another. Constantine intervened and united Rome, using military might and a new religion - Christianity.

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.

The plant eaters take on the largely indigestible, spiny and poisonous defences of plants with some spectacular physical adaptations to diet. Plant Predators demonstrates the particular (and often peculiar) adaptations of herbivores