At the age of eleven, Joe Norman’s father, on his deathbed, reveals to him that he is an alien living undercover on Earth. Joe takes this revelation to heart. As he matures, he becomes an avid enthusiast, working in a comic book store. His life takes a turn when he meets Maria, a grounded fellow science fiction enthusiast, who motivates him to pursue a more conventional social life. However, their newfound normalcy is disrupted when interstellar bounty hunters locate Joe at his workplace, leading the couple to uncover the perilous reality of Joe’s true identity.