After the deaths of friends and family members, Lance and Cass teeter on the brink of losing it all. They face insurmountable odds with the power out at The Light, and an army of horrors bearing down on their home.

The Demon King leads a horde of rage and destruction to their door, intending to wipe out one of the last strongholds of humanity. His intelligence has evolved differently from the other infected, allowing him to attack mankind's weaknesses and nullify their defenses.

As twilight descends into darkness, so does the last hope of civilization.