Now, Mark Hardin heads into the Japanese countryside to track down the elusive Tokyo Purple organization and put a stop to their plans for global upheaval, which would allow anyone with a deep checkbook will to get a nuclear device.
Meanwhile, naked and alone, Melisssa Broadhurst is at the mercy of an evil giant, a Japanese "Godfather" who wants to pick her brains. And if she won't cooperate - well, there were a number of things he can do with his beautiful American captive until she starts seeing the situation his way.
Melissa, a scientist specializing in non-military atomic research, had been vacationing in Japan when he had abducted her. Kamisori, the head of the monstrous crime syndicate, was assembling a stock of atomic artillery shells to auction to the highest bidder - and he needed her help to finish them. But the Penetrator is in Tokyo, and when he hears about Kamisori's network of killers - and some missing atomic scientists - he knows it's time to go back to work.