how did the deads rise up because if its the virus it doesnt make any sense how did it got transfer on the old deads on graveyard and they are buried for a long time now how did it even spread? And the guy in the funeral after got being embalm how did he became a zombie how did he got infected diesnt make any sense they only just drilled a hole and has a infected one i persume its a patient zero but how did he spread the virus the guy is in chain and there is no water tye could contaminated the area i only see water when they started drilling but the dead are already rising it didnt even have time to got contaminated on the first place the seires should have explained how did it started and how did got spread