2023 – the hottest year since climate records began. The “Polarstern”, Germany’s only icebreaker, sets off for the North Pole. Under the leadership of Antje Boetius, Germany’s best-known marine biologist, an international research team is embarking on an urgent mission: they want to understand how life at the North Pole works and are diving under the ice to a depth of four thousand meters for the first time.

75 minutes, ARD/NDR