In 2020, the city of Verdansk falls under siege after terrorists Khaled Al-Asad and Victor Zakhaev orchestrate a devastating attack that floods the region with toxic gas. The Armistice, a joint coalition of Russian and NATO operators formed to maintain order, fractures under the chaos, leaving former allies to fight one another for survival amid the spreading contamination. Task Force 141, led by Captain John Price, takes up the mission of tracking down Zakhaev before he can carry out his ultimate plan: the launch of a nuclear missile.