2021 - 5 years after the outbreak of a mysterious virus that turned humans into bloodthirsty, undead beasts much of the world’s population has been decimated. When governments were unable to keep the disease at bay, the Contagion Special Unit was formed with the toughest soldiers and best specialists to fight the infected. Because of the rapidly decreasing number of soldiers, a popular online video game Dead Trigger that mirrors the terrifying events was created. The best efforts of the gamers