In one of the harshest places on Earth, three women from different generations chase a hidden and ephemeral world beneath the Antarctic sea ice. Dr Natalie Robinson leads an expedition to McMurdo Sound, joined by PhD student and microbiologist Jacqui Stuart on her first trip south. Mentoring them from afar is veteran sea ice physicist Professor Pat Langhorne. Battling brutal weather and isolation, the team discovers extraordinary tiny creatures within the delicate structures of the ice. Weaving personal stories with groundbreaking science, this is an intimate and deeply human portrait of life set against the immense scale of Antarctica, told with grit, wit, and surprising warmth.