When a young, intellectual, but somewhat sheltered French archaeologist goes to Berlin to study he learns much more than the dry study of ancient cultures. He finds new friends who introduce him to a new world of sexual pleasure and sensation; a world he hadn't known existed. He also hadn't realized he was well endowed. His new friends certainly noticed that and he took to his new lifestyle like a duck to water. In 1927 Hitler was joke, a nonentity. Returning to Germany in 1937, the nation was being transformed into a totalitarian state. He runs into Nazi agents, but finds his friends have remained true. He renews his intellectual and sexual connections with them.When France falls to the Nazi's the older and wiser archaeologist discovers the Stone Age caves he has been exploring can become ideal hiding places for refugees trying to escape the horrors of the war. Unexpectedly he becomes an unlikely Mata Hari, using his sexual skills to penetrate into the Nazi plans for the area. He uses all his skills, intellectual, physical and sexual to fight and foil the plans of the Nazi master race.He also finds new friends hiding in the Cave of the Blue Bear. Living with the constant possibility of discovery, torture and execution made friendships stronger and the sex hotter. Strangers quickly became friends and soon were lovers.