Mika and ellie live in a future behind a wall: solid concrete topped with high-voltage razor wire and guarded by a battalion of ghengis borgs, it was built to keep out the animals, because animals carry the plague. At le...Mika and ellie live in a future behind a wall: solid concrete topped with high-voltage razor wire and guarded by a battalion of ghengis borgs, it was built to keep out the animals, because animals carry the plague. At least that's what ellie, who was kidnapped as a child, has always been taught.