When French astronaut Sarah Loreau (Eva Green) receives the news that she will soon be involved in a year-long space exploration mission called Proxima, the laborious training at the European Space Agency in Cologne begins, aswell as the agonising personal decisions that have to be made, particularly those that involve her eight-year-old daughter, Stella (Zelie Boulant). A really effective and at times emotional drama that is worth every bit of the modest one-hundred and seven-minute runtime.