Little john vs. Zombies is a video referring the global zombie apocalypse. The origins of the apocalypse are vague only stating environmental pollution as the cause. In the video it is shown that Little John in a dump/electricity trap found an elevated platform which he uses as a high tech fortress with booby traps and a luxurious living space. It is also implied that aviation is still a prominent transportation option, but its uses during the apocalypse are still unknown.[1]
A zombie horde as seen in the video.
Zombies
Zombies are human victims of the zombie apocalypse that roam for newly infected. When a victim gets infected by a zombie they lose intelligence and general complex mobility such as climbing a elevated platform Little John resides on. There are no ways to distinguished who is a zombie or not as no bodily visual features are affected, but its also implied that zombies sometimes stay in large groups when they go hunting as showcased in the video.