In the quiet of the guardhouse, a lone sentinel, clad in his crisp uniform, can't resist the allure of his own flesh. He unzips, revealing his throbbing erection, and begins to stroke, the rhythm of his hand matching the ticking clock. The tension in the room builds, mirroring the pressure in his loins, as he edges closer to release. The door creaks open, but it's too late to stop now. He's a man on a mission, and nothing will interrupt his self-pleasure.