Captain Peter Joseph Kellerman was once a promising career soldier who’d proven his mettle in battle time and again. Now he’s fighting a battle with a whiskey bottle. He’s also in charge of Fort Benjamin Grierson, located west of hell, deep in Arizona Territory’s Mohawk Valley on the arid edge of the Yuma desert. The men under his command aren’t fit to wear the uniform. Killers, thieves, and ravagers condemned to death but who’ve chosen to serve, holding down the hated Fort Misery. Santiago Lozado, the most wanted bandit on both sides of the border, has set his sights on Fort Misery. He wants vengeance against Kellerman for killing his son and has raised an army of brutal Apaches and Comancheros to slaughter every man wearing Union blue—only to encounter a wild bunch of desperate men unafraid of shedding blood and fighting to the death . . .