Seryozha has long dreamed of a computer - and now it stands on his desk. However, the computer is somehow unusual... He offers Seryozha to destroy the Earth, and he, considering everything a game, launches a program that cannot be canceled... The will of the late Galactic Emperor has been accomplished: the Earth is only three hundred hours away from being conquered. The base of cyborg killers summoned by the computer is already in the solar system. Will Seryozha and his friend space captain Google be able to stop the infernal machine? Time has already passed...