The plot is the world population will not die. This causes problems to the health care system. Yes, Health care is screwed because people are still getting really sick, shot, blown up, and crushed. So the hospitals are running out of pain killers and antibiotics. The government is running camps to contain the undeadish people. Well I would go on but as River Song Said " Spoilers Doctor Spoilers".
Ok, C. Thomas Howell and alot of other stars have cameo appearances. I say it is better then Childern Of Earth.
Oh Yeah Capt. Jack Is Mortal