Detailed Instructions: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
Q: Black Ops III takes place in 2065, 40 years after the events of Black Ops II, in a world facing upheaval from climate change and new technologies. Similar to its predecessors, the story follows a group of black ops soldiers. The game's campaign is designed to support 4-player cooperative gameplay, allowing for bigger, more open level design and less corridor shooting. As the player character is cybernetically enhanced, players have access to various special activities. The game also features a standalone Zombies mode, and a 'Nightmares' mode which replaces all enemies as zombies.
A:
what is the story of call of duty zombies