Licence to Krill (2015)

Antarctic krill are small animals with a big problem. The food of whales, penguins and seals, their numbers have been in dramatic decline. "Licence to Krill" follows an international scientific expedition deep into the pack ice as they search for the reason why. It's a dramatic scientific detective story set in a dangerous and unexplored environment, which reveals the forces that now conspire to threaten all life in Antarctica.