Society was dominated by men, and the women were oppressed. A radical women's group manages to hijack some nuclear missiles and threaten to use them unless a power sharing arrangement is signed. The men send in an anti-terrorist force to attack the women, but during the battle the missiles are launched precipitating a nuclear winter on Earth; the survivors are a group of a thousand women who were at a meeting, who establish an all female underground society (no doubt playing lots of "underground games"!). About 50 years later, they discover a lone male still preserved in hibernation during a mining task. He is awakened and held captive while the women decide what to do with him. You are that lone captive, of course and must escape before they kill you too.