[Prologue] The time is the tomorrow after tomorrow. Earth has been polluted and devastated by the great robot wars and is all but deserted. Man has moved onto the moon, colonised its surface and erected vast cities in what was once wasteland. Ranging further out into deep space he has embarked on an even greater era of adventure and discovery. But the survival of mankind is dependent on a continuing supply of the miracle drug RADIC-Q-2.....And RADIC-Q-2 is produced only on the distant planet DELTA THREE.