In 2025, US Special Forces operatives led by David Mason and his partner, Harper, arrive at “the Vault”, a top-security location home to an elderly Frank Woods, whom they suspect possesses vital information on the whereabouts of Raul Menendez. Woods concedes that Menendez has recently visited him, and shows them a locket that the latter had left behind. Frank then narrates several covert missions undertaken during his military career which span their previous encounters..