Davey Osborn is a kid who's mother died and his dad is too busy, so he begins to see his favorite hero, Jack Flack, who is a video game superspy. A FBI agent is shot and gives Davey a top-secret video game cartridge before he dies leving him in danger from criminals that want the data on the cartridge. No adult believe him so he enlists his friend and the imaginary Jack Flack to return the cartridge to the good guys.