1983. Milo, a 12 years old boy, follows with interest and curiosity his father's hobby, the study of facts of an extra-terrestrial nature. The man is only looking for concrete proofs, whereas his son uses his own imagination to explore such a fascinating world. After the divorce of his parents, Milo totally escapes reality by desiring to see a real alien and to go away with him... One day, the kid finds out a sphere from space which reports a recorded message for boys like him, a sort of mission to get the chance to see the mysteries he's always struggled to solve...