Activision has unveiled the newest chapter of the Zombies narrative that has been running in the Call of Duty franchise since the first Black Ops game.

Part of this year's upcoming launch, Cold War, Zombies is getting rebooted. Sort of. It's always complicated with time travel stories. The mode is joining a narrative driven campaign and complete multiplayer mode, making Cold War a truly content-rich package.

While in many ways a new beginning for the Zombies series, the mode will be familiar to players who have been fans of the supernatural co-op subline that's been running alongside the main Call of Duty games for a decade now. You're still teaming up with your mates to fend off hordes of undead and there will be a lot of familiar plot points present, but this new chapter is exploiting the time travel present in the series to softly reboot everything.

Some characters will return from the previous Zombies canon and there will be familiar locations and maps, but the convoluted plotline is out the window.

There were already two separate-ish plotlines, and Cold War takes the original as its basis. Two opposing special forces squads are sent by their respective nations - the USA and the USSR, in this case - to explore a clandestine WWII bunker that has been sealed up since the war with rumors of a cache of invaluable military secrets and answers to unexplained phenomena that could be harnessed for a tactical advantage.

Activision has described the first map of the new Zombies campaign, called Die Machine, as more than just a little similar to the very first Zombies map players ever experienced, Nacht der Untoten. The German name implies that the Nazi obsession with the occult is once again a key element of the storyline.