The Arkadium's time has come. A religious cult intent on setting history back ten thousand years, destroying modern man's domination of the planet. Growing up, the Grant brothers were close, but as they reached adolescence they drifted apart, taking opposite paths into adulthood. Straight-laced Jason works for a small town newspaper. Marcus is into drugs, violence, and self-destruction. Marcus finds salvation and sobriety when he joins the Arkadium and reaches out to his brother, wanting him by his side to record the new prehistoric era, Arkadium's era. Jason faces a choice, join his brother in the destruction of humanity, or die like one of the millions of innocents who will fall in the Arkadium's ascent.