|Appearance||Day of the Dead|
John is a survivor of the undead apocalypse.
John, believing the zombie plague to be a divine punishment with no cure, urges Sarah to abandon the research with him and escape the complex before the soldiers become unstable enough to try to kill them.
Two days later, after an insane and wounded Miguel comes to them, John and Bill attempt to defend Miguel from Rhodes and his men. When Rhodes declares that the specimens are to be destroyed tomorrow, Sarah breaks down, but is comforted by John. Rhodes later has Sarah and McDermott lowered into the zombie-infested caves. He orders John to get ready to fly, but the latter refuses to go anywhere until Sarah and McDermott are released.
While Steel and Rickles try to rewire a sabotaged control box, John knocks Rhodes out and escapes into the caves in search of Bill and Sarah. Sarah, John and Bill leave the complex through the silo, and, pursue by a large horde of zombies, narrowly escape aboard the helicopter to a mysterious island.