Robert Trevor is a 21st century man catapulted through time to a medieval post-apocalyptic Earth. Honored as a saint of a goddess in which he doesn't believe, Robert strives to remove the caste system and slavery from the land. His fight becomes desperate when he realizes his own daughter is to be sold into slavery. When the King--fearful of new enemies--bans all rescue efforts for people found living beneath a melting glacier, Robert sneaks off to help them before it's too late. His struggles are further complicated by an old foe, looking for revenge. Robert's only hope is to find and magically reconstruct his F6F Hellcat fighter plane.