You come to consciousness in an unfamiliar building with your hands tied and a gun at your neck. A woman passing through the corridor — a self-described spy — intervenes and saves you, then immediately volunteers you as a test subject for an unstable piece of technology she has been developing. The tool she gives you provides what should be extraordinary aiming capability, but it comes with a critical gap: you do not know how to reload the weapon it is meant to work with. Learn step by step — load the magazine, chamber the round, and then work your way through a building full of armed gang members with only a pistol and a few spare magazines.