A schoolteacher awakens alone on a spaceship 12 light years from Earth. He has no memory of who he is or why he's there. Gradually, his memory returns: humanity is dying, the Sun is losing its energy, and he is the world's last hope. His mission is to find the cause of the cosmic threat and save Earth. But along the way, he meets an unexpected ally from another planet. A new sci-fi film starring Ryan Gosling about survival, friendship, and saving humanity.