The elderly astronomer Augustin has spent his entire life studying the stars. When news of a certain catastrophe arrives, he is left completely alone at an Arctic research station. It is there that he meets the mysterious girl Iris, as the echoes of the rest of the world gradually fade away. Meanwhile, returning from a mission near Jupiter, the crew of the ship “Ether,” led by Captain Sullivan, is heading to Earth. Augustin and Sullivan are far apart, but their fates are inextricably linked.