Amanecer en Puerta Oscura

A man in search of revenge infiltrates a ranch, hidden in an inhospitable region, where its owner, Altar Keane, gives shelter to outlaws fleeing from the law in exchange for a price.

One of the last bills signed by President Lincoln authorizes pushing the Union Pacific Railroad across the wilderness to California. But financial opportunist Asa Barrows hopes to profit from obstructing it. Chief troubleshooter Jeff Butler has his hands full fighting Barrows' agent, gambler Sid Campeau; Campeau's partner Dick Allen is Jeff's war buddy and rival suitor for engineer's daughter Molly Monahan. Who will survive the effort to push the railroad through at any cost?

Searching for a doctor who can help him get his son to speak again--the boy hadn't uttered a word since he saw his mother die in the fire that burned down the family home--a Confederate veteran finds himself facing a 30-day jail sentence when he's unfairly accused of starting a brawl in a small town. A local woman pays his fine, providing that he works it off on her ranch. He soon finds himself involved in the woman's struggle to keep her ranch from a local landowner who wants it--and whose sons were responsible for the man being framed for the fight.

In a modern cow town, the powerful ranch owner’s henchmen kill a ranch hand, prompting the sheriff to investigate despite facing strong opposition. He finds an unlikely ally in the rancher's overprotected daughter, but their quest for justice puts them both in danger.

At a Mexican ranch, fugitive O'Malley and pursuing Sheriff Stribling agree to help rancher Breckenridge drive his herd into Texas where Stribling could legally arrest O'Malley, but Breckenridge's wife complicates things.

An authoritarian rancher rules an Arizona county with her private posse of hired guns. When a new Marshall arrives to set things straight, the cattle queen finds herself falling for the avowedly non-violent lawman. Both have itchy-fingered brothers, a female gunman enters the picture, and things go desperately wrong.

Jim Douglass arrives in the small town of Rio Arriba in order to witness the hanging of the four men he believes murdered his wife. When the convicts escape, Jim tracks them into Mexico, determined to see that justice is done. But the farther Jim goes in his quest for vengeance, the more merciless he becomes, losing himself in an unrelenting spiral of hatred and violence.

A gunfighter and a cowboy help a Mexican girl avenge the land-related murder of her parents.