"Call of Duty: Black Ops" is a first-person shooter video game released in 2010, developed by Treyarch and published by Activision. It is part of the popular Call of Duty franchise and is set during the Cold War, featuring a single-player campaign that follows a soldier named Alex Mason as he uncovers a conspiracy involving brainwashing and covert operations. The game also includes a robust multiplayer mode, allowing players to compete against each other in various game types and maps. Additionally, "Black Ops" introduced the popular Zombies mode, where players fight against waves of undead enemies, enhancing its replayability and appeal to fans of the genre.