A full alert is in progress at top secret Johnson Field Air Force base, situated in a remote Nevada valley....... It is believed that the base has been visited by a real UFO, and their control centre has detected something unidentified - but too late for action. As the base air attack force is stood down, however, a loud bang is heard echoing through the black desert night - followed by the screeching noise of tortured metal. A full search is begun at first light the next day but, though a strange, badly damaged craft is found, there is no sign of occupants. So begins yet another wave of suspicion, and belief, that Earth really has been visited - and events later prove more than bewildering for young Nevada schoolboy, Jeffrey Hayward........'