Includes Red Dead Redemption Undead Nightmare Pack DLC Red Dead Redemption America, 1911. The Wild West is dying. When federal agents threaten his family, former outlaw John Marston is forced to pick up his guns again and hunt down the gang of criminals he once called friends. Experience an epic fight for survival across the sprawling expanses of the American West and Mexico, as John Marston struggles to bury his blood-stained past, one man at a time. Undead Nightmare Unleashed upon the world of Red Dead Redemption. The Undead Nightmare Pack features an entirely new single-player campaign that follows John Marston as he tries to find a cure for the highly-infectious undead plague spreading across the frontier. In addition to this epic single-player adventure, the Undead Nightmare Pack also features a brand new multiplayer mode in addition to new gameplay mechanics, weapons, undead animals and mythical creatures.