Johnson is an ordinary office worker of the 24th Century. After a weird dream, he discovers that he is actually Cobra, a space pirate who changed his appearance and erased his memories so as to be safe from the Galactic Guild. He recovers the use of the psycho-gun, a secret weapon concealed in his left arm and with the help of his android Lady, he travels through space again and meets the three daughters of a space pirate who hid his treasure somewhere. <br />