A few of Sin City's most hard-nosed residents cross paths with some of its more reviled occupants.

After a mysterious virus kills billions and creates scores of zombies, the government develops a video game that simulates the outbreak, then recruits the game's best zombie killers to combat the real-life horde. Led by Captain Kyle Walker to Terminal City, the virus's point of origin, the players' mission is simple: find the team of scientists working on a cure. But wiping out the city's undead legions will test every skill they possess.