Thoracic surgeon Evgenia Belyaeva has one month to prepare for a flight to the International Space Station, where she must operate on a crew member. Will she be up for the challenge? Can she overcome her fears and insecurities? Will she be able to perform the complicated surgery in zero gravity, and give the cosmonaut a chance to return to Earth alive?

450 kilometers from the Earth, during these six months when the world seems to be moving into the unknown, a dialogue is woven between the astronaut and the visionary work of Saint Exupéry that he took to the space station