Marston cautiously approaches the graveyard at Coot's Chapel.

As part of his quest to repel the living dead uprising of the Undead Nightmare, John Marston will need to go straight to the source, the various graveyards of the world of Red Dead Redemption where these vile creatures have risen from.

Each of the graveyards in the Northern and Frontier territories has become overwhelmed by the undead menace, and you'll need to travel to each of these locations (Blackwater, Coot's Chapel, Odd Fellow's Rest and Tumbleweed) to eradicate the threat.

In order to cleanse these hallowed resting grounds and restore them to normal, you'll need to set fire to coffins strewn around each of the cemeteries in to draw them out.  Then, prepare for a surging mass of undead looking to greet you with open arms - and jaws...

Check out some brand new screens below from the graveyards of Red Dead Redemption: Undead Nightmare, which will be available simultaneously for download on PlayStation Network and Xbox LIVE next week on October 26th.

Here lies lied Mordecai Robbard.

Setting fire to a coffin to draw out the undead menace.

The church at Blackwater - soon to be teeming with the restless dead.

The welcoming commitee greets Marston at Odd Fellow's Rest.

Sweeping down the main street on horseback to fight back the virulent plague and save towns in Undead Nightmare.

Dealing with the zombie plague that's decimating the landscape and reawakening the hungry dead in next week's Red Dead Redemption: Undead Nightmare means helping those that are still alive and fighting off zombies in many of the towns, outposts and settlements.

Providing survivors with ammo gives you additional support in helping to eradicate the undead menace.

To help save these towns from the zombie hordes, you'll need to find survivors and assist them in eradicating the zombies, both by supplying them with much needed ammunition, which can be found in ammunition chests scattered around town, and by taking to the rooftops to assist first hand in wiping out the attacking mobs of undead.

Continue taking out zombies and supplying ammo to survivors to fill the Town Safety meter.

A town's infection level is indicated by the number of circles displayed on the town defense meter. As you root out zombies and deliver ammunition to townsfolk the circles will begin to fill up. Once all the circles in the display are full, any remaining zombies in town will automatically be added to your map.

Taking on a fairly large infestation in Armadillo.