When a virus leaks from a top-secret facility, turning all resident researchers into ravenous zombies and their lab animals into mutated hounds from hell, the government sends in an elite military task force to contain the outbreak. Alice and Rain are charged with leading the mission. But they only have three hours before the pathogen becomes airborne and infects the world.
Brothers John and Matt have inherited an island cabin from their recently deceased uncle. Along with Matt's girlfriend, Nicki, and other mutual friends, the siblings travel to the cabin for a relaxing weekend getaway. But, not long after arriving, the group is besieged by ravenous dogs. They watch in horror as another vacationer, Luke, is eaten alive. Soon, they discover a training facility where the dogs have been bred to kill.
In her many years as a social worker, Emily Jenkins believes she has seen it all, until she meets 10-year-old Lilith and the girl's cruel parents. Emily's worst fears are confirmed when the parents try to harm the child, and so Emily assumes custody of Lilith while she looks for a foster family. However, Emily soon finds that dark forces surround the seemingly innocent girl, and the more she tries to protect Lilith, the more horrors she encounters.
A mother and daughter move to a new town and find themselves living next door to a house where a young girl murdered her parents. When the daughter befriends the surviving son, she learns the story is far from over.
A young boy named Luke and his grandmother go on vacation only to discover their hotel is hosting an international witch convention, where the Grand High Witch is unveiling her master plan to turn all children into mice. Will Luke fall victim to the witches' plot before he can stop them?
Four young grade-school girls witness the murder of one of their classmates during what they thought was just an innocent game. The killer is a strange young boy named Milo Jeeder. Sixteen years later, the four survivors of the event re-unite under happier circumstances in the same town where it happened. They believe that Milo drowned in a river shortly after the murder, but soon learn that the demonic killer Milo has also returned, still a young boy, unchanged even after almost two decades.
Doctor Baines has been conducting genetic experiments on piranhas and has made them virtually unstoppable. Unfortunately, his assistants, Maggie and Paul, accidentally release the hybrids into the Lost River Lake threatening to destroy everyone in their path. Can they prevent the flesh-eating piranhas from escaping into the ocean and spawning?
Rachel is a criminology student hoping to land a position as a teacher's assistant for professor Robert Starkman. She's sure this position will pave the way to an FBI career, and she's willing to do anything to obtain it -- including killing her classmates. The school psychiatrist, Dr. Daniels, becomes aware that Rachel is insane, but Rachel is skilled at her dangerous game of death and identity theft.
At the end of every summer, the children of a Christian community from a suburb of New Jersey attend Camp Hope. They travel deep into the woods far from any distractions the world provides. Here, the children are taught the ways of the Lord, the perils of the flesh, and the horror of the Devil. A charismatic priest leads them in their training. But, he unknowingly has brought something with him, something evil. What was supposed to be a safe place, a spiritual retreat has now turned into a nightmare that not even faith can end.
Greg and his friends break into an old warehouse, where they find an unusual camera. However, the photographs Greg takes with it seem to predict disaster, and he becomes convinced the camera is cursed.