Whilst walking on his local beach, Joe Laing chances upon a tunnel in the cliffs, which is a time gateway leading to the Neanderthal Britain of 35,000 years ago. He contacts the primitive hunter-gatherers and is recognised as 'the Futama', whose legend has survived amongst the tribesmen for 250,000 years. Although Joe cannot understand the reason for the legend, he settles easily into the lives of his new friends. He witnesses the Neanderthal methods...