Mylo knows there's no such thing as Martians - at least, until a flying saucer crash-lands next to his family's New Mexico farm. And then he starts to hear the voice, like someone's trying to communicate with him, asking for help. Desperate to be as brave as his older brother Obie - who passed away over a year ago - Mylo has to investigate the crash. Along the way, he ends up discovering more about the universe than he ever could have imagined.