Activision has announced and released a new trailer for Call of Duty: WW2's fourth DLC pack, Shadow War. The DLC is coming out as a timed exclusive for PS4 first, before releasing on other platforms.

Shadow War concludes WW2's Nazi zombie storyline in a final chapter titled The Frozen Dawn. Taking place in the hellish depths of a lost city, The Frozen Dawn will test you with new hordes of zombie. However, seemingly magic-infused weapons will be available for you to pull off insanely powerful attacks. Some of them can be seen in the trailer, but Sledgehammer promises there are more secrets to discover in the DLC.

"Thematically for this pack, we wanted to push the fiction as far as we could, have a lot of fun with it, and give the player a sense of creativity as they play," said Sledgehammer Games lead multiplayer environmental artist Matt Abbott in a PlayStation blog post.

Shadow War also adds three multiplayer maps: Airship, Chancellery, and Excavation. Airship takes place far up on a mountain next to a docked zeppelin. Owning the zeppelin gives your team the advantage, but you have to run out of cover along narrow cliffs to reach it, and one misstep results in death. Chancellery takes the battlefield to a French stronghold for a nighttime firefight. Buildings at either end of a courtyard provide excellent sniper spots, but you can also hide in the parked trucks and set an ambush. Excavation is located in an Algerian mine. The dug up treasure and artifacts create a littered battlefield.

Operation Arcane is the final piece of content included in Shadow War. Rather than a straitforward battle, you'll play as the Allied forces who must infiltrate an Austrian lab, steal secret tech, get to the hanger filled with UFOs, and blow up the lab while escaping. The weapons you discover, like the Tesla Gun and a super soldier serum, can be stolen and used to complete the mission.

Shadow War comes to PS4 players first on August 28. The DLC releases for Xbox One and PC at a later date. For a limited time, Call of Duty: WW2 season pass owners can invite other players who don't have the DLC to participate in the content. From August 28 to October 28, if a season pass owner creates an in-game party and is party leader, everyone invited can participate in the new multiplayer maps, operation, and zombie storyline.