After receiving a telegraph message from his cousin, the commanding officer at the notorious Fort Hook, vigilante Uriah Moon wonders why he of all people has been summoned to help the troubled Colonel Ambrose Moon. But as he soon discovers, a dangerous situation has been brewing, and it's about ready to explode at any moment.
This is Apache country, and Fort Hook had been built directly opposite a place the Apaches hold sacred, a place where the Devil himself is said to live.
So Uriah finds gunfire, treachery and a desperate fight for life as he heads for the chilling patch of country known as ... Lucifer's Lair.