Call of Duty: Black Ops Cold War on PS4 is the seventeenth game in the Call of Duty franchise and sixth in the Black Ops series, developed by Treyarch and Raven Software. Set in the early 1980s during the Cold War, it's the direct sequel to the original Black Ops. The campaign follows CIA operative Russell Adler as he pursues Perseus, an alleged Soviet spy aiming to subvert the United States. Battle through iconic Cold War locations like East Berlin, Vietnam, Turkey, and Soviet KGB headquarters. The game features a gripping single-player Campaign, the next chapter of Black Ops Multiplayer with signature combat and cross-platform play, and Black Ops Cold War Zombies with new progression, classic Perks, Cold War-era weapons, and co-op survival against the undead.