Something is causing the people of a small Iowa town to become violent, uncontrollable killers. Efforts to find out what is happening are halted by a military force and it seems there will be no way out of town and no cure. With Timothy Olyphant, Radha Mitchell, Danielle Panabaker, Joe Anderson, Joe Reegan and Christie Lynn Smith. Directed by Breck Eisner. [1:41]

SEX/NUDITY 1 - A husband and his wife kiss and a husband and his wife kiss and caress each other in a few scenes.
► A husband and his wife are in bed, and he's bare-chested and she is wearing a nightgown that reveals cleavage. A man wearing swim trunks is shown climbing out of a swimming pool.

VIOLENCE/GORE 9 - A man, his face and shirt splattered with blood, drags a pitchfork on the floor and to a room where several people are strapped to medical tables: he raises the pitchfork, which is dripping with blood, over a woman and stabs her through the chest (we hear a crunch, see the tines of the fork push through the bottom of the bed, blood drips on the floor and she moans), he then runs through a man three times (we hear loud crunches and see blood pour through the bed and onto the floor), he holds the pitchfork over a young woman who screams and protests, he is distracted by another woman who screams, he goes toward her, raises the pitchfork and he is shot twice in the back (we see bloody bullet holes).
► We see several bodies in a funeral home with some covered by sheets and others not; one body is badly charred, one body has lines carved into its eyelids, and one person that's still alive has his eyes and mouth stitched closed (there is blood on his face). A woman hides in a restaurant storage area where many dead bodies are piled up (we see bloody wounds and one body is missing the lower part of the jaw and is covered in blood). We see the back of a large truck piled with dead bodies (charred remains and bloody bullet holes are seen) and numerous shell casings litter the ground. Many people are shown dead on the ground with blood pooled on the ground around them. We see blood dripping from the back of a pickup truck and then see several bodies inside the bed (bloody bullet holes are seen). A woman opens the door of a truck and a body falls out (she screams).
► A man carrying a shotgun walks onto a baseball field during a game (he has a bloody nose and his skin appears to be discolored) and he threatens another man, who shoots him in the head in front of a large crowd of onlookers (we see blood spurt from the man's head and he falls to the ground dead).
► A man with a metal bar strikes another man in the head, who falls to the floor, and then tries to cut him with a surgical saw: they struggle over it, it cuts one man's chest (we see blood), cuts a corpse nearby (blood spurts), and it then cuts into the chest of the other man (blood splatters), who twitches and falls to the floor dead; the saw then spins along the floor toward the crotch of a man (he is not harmed).
► Armed men enter a house, they come out holding a woman by the arms, she is tested and found to be sick, a young man runs toward her, he is shot (blood spurts and he falls to the ground), she breaks free and runs toward the young man and she is shot (blood spurts and she falls to the ground) and both bodies are set on fire (we see the smoldering, charred bodies later).
► A man finds a woman tied to a chair and gagged, another man wraps a cable around his throat, and he struggles to get free as another woman stabs him in the hand (we see the knife go through the hand and into the floorboard and there is blood); the woman then points a gun at the woman tied to the chair, the man on the floor pulls his hand (with the knife) off the floor, elbows the other man in the face, stabs the woman in the throat (blood spurts and we hear her gurgle), and one man is shot in the back (we see bloody bullet holes).
► We hear gunshots coming from outside a building, a truck crashes into a fence, breaking it down, people run and scream and people shoot each other (we see them fall to the ground, and no blood is visible). A man is shot repeatedly (we se blood spurt), he falls to the ground (we see his bloody face) and we hear another shot off-screen. A man runs through a street, three armed men shoot him in the head (blood splatters onto a car window), and they then drag him away and dump him in the back of a pick up truck. A man is shot in the head (we see bloody bullet hole). A man shoots two dying people several times (we do not see the impact). A woman shoots a man in the head (blood splatters and we see the bloody wound).
► A car is pulled into a car wash, and as it exits it is attacked by several people who break the windows and try to get to the passengers, who fight them off; one young woman is snared around the throat with tubing and pulled out of the back window and we see her hanging (she is pulled down and determined to be dead, and we see a bit of blood on her mouth).
► A bloody handprint is shown on the wall of a jail cell and a man lying on the floor has a bloody, decaying face and flies are buzzing around him (he's still alive). Three hunters find a parachute entangled in trees, they pull on the cables attached to it and find a dead body that's badly decayed. An infected person yells and thrashes, slamming into a door (we see blood on the glass). A man in a jail cell appears to be dead and when two other men move close to the bars, he lunges toward them snarling and trying to grab them.
► Two men fight (we see the discolored skin and eyes of one man), heavy punches land, one man is thrown on his back, and one man is coated with car oil and set on fire (he thrashes and screams and falls to the ground). A man is beaten when he tries to get away from armed men in order to free his wife who is being taken away. A man punches another man in the face (he has a bloody nose) and steals his gun. A man punches another man in the face and knocks him out. A man is punched in the face (he has a bloody nose).
► A man with a knife walks through a hallway, locks a closet door where his wife and son are hiding from him, pours gasoline throughout and down the stairs and ignites it; we see the flames rush through the house and up the stairs, we hear screaming coming from behind the closet door and we understand later that the two were unable to get out alive.
► A woman is forcibly strapped onto a gurney and wheeled into a room where other people are strapped to gurneys; some are conscious, one twitches, one is laughing uncontrollably, and a mask is placed on her face and she screams.
► A man holds another man and a woman at gunpoint. A man holds another man at gunpoint.
► People are shown in many scenes in a violent rage, with no apparent concern for consequences. A woman slaps a man in the face. A woman screams and yells at a man when she realizes that a woman and her son are dead. A woman confronts a man for shooting her husband. A man seems agitated in several scenes. A man yells at a woman. A man yells at another man.
► A woman goes to a barn where a farming machine with larger spinning blades is running, she turns it off, she hears her son scream from inside the house, and he says that his father has a knife. A man walks through a dark barn searching for someone, he hears a scream in the house, and when he runs out of the barn, he is grabbed by armed men who force him into a vehicle. Two people punch the side of a dumpster repeatedly.
► Many men, women and children are transported to a containment area and tested as they walk through; a baby is taken away from its mother, and a woman is dragged away.
► After a huge flash, the shock wave throws a truck off the road. A helicopter shoots at a car and it explodes. We see an entire town engulfed in flames. An airplane is shown submerged under water. A man throws spikes across a road, a large car drives over them, it swerves and rolls off, and the passenger is shown with a bloody head wound.
► Several people are seen in a near catatonic state, staring blankly, with bloody noses, and discolored skin and eyes in several scenes.
► A man talks about his family being shot to death.
► A man spits on the ground (we see the goo).

LANGUAGE 8 - About 35 F-words, 19 scatological terms, 3 anatomical terms, 7 mild obscenities, name-calling, 5 religious profanities, 11 religious exclamations.

SUBSTANCE USE - A man says that another man was drunk, and allusions are made to the man having had a drinking problem. A man smokes a cigarette.

DISCUSSION TOPICS - Small town life, guilt, the spread of disease, the containment of disease, epidemics, pandemics, murder, alcoholism.

MESSAGE - Sometimes just drinking the water can turn you into a zombie-like crazed killer.