Wherever humans go, whatever we do, we need to eat. In this programme, we meet the people cooking at the extremes. We hear about the chefs serving up three-course meals on Africa’s highest peak; the elaborate puddings created on stormy seas with a cruise ship pastry chef; the art of cramming enough food to feed 100 hungry sailors on board a nuclear submarine with a US Navy submarine culinary specialist, and tapas nights in the Antarctic with the chef at Rothera research station. Presenter: Ruth Alexander Producers: Rumella Dasgupta and Izzy Greenfield (Image: Mount Lister in Antarctica, covered in snow and ice. Credit: Getty Images/BBC) If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk