At the world’s leading arms manufacturer, Ammotech, the board of directors tests a new energy drink, Volt, on their staff to see if they become more efficient workers. Unfortunately, the office is given the wrong formula and turn into hyper-aggressive homicidal maniacs. Desmond (Thwaites), the resident office slacker, must step up his game to save his office crush, Sam (Levy) and the rest of the planet from being infected or murdered by the growing horde of office zombies being led by his overzealous boss.