North of Timbuktu

Fifty nations are contributing 14-thousand people to peace-keeping in northern Mali - and their abilities are being severely tested. The tourists have turned their backs on the Greek holiday island of Lesbos but the volunteers, who've flooded in to help the migrants arriving on its shores, are generating new business opportunities. A visit to two military cemeteries, back to back in the Ethiopian capital Addis Ababa, where the dead lie after Italy's African empire was brought to a abrupt end. The extraordinary tenacity and stoicism of the fishermen of Greenland as they prepare for the long cold winter ahead. And Eccles, the Wirral and the frozen borderlands between Norway and Russia are all involved in a story about a giant crab and its march on western civilisation