This forest isn't charted on any map. Every car breaks down at its treeline. Mina's is no different. Left stranded, she is forced into the dark woodland only to find a woman shouting, urging Mina to run to a concrete bunker. As the door slams behind her, the building is besieged by screams. Mina finds herself in a room with a wall of glass, and an electric light that activates at nightfall, when the watchers come above ground. These creatures emerge to observe their captive humans and terrible things happen to anyone who doesn't reach the bunker in time. 

Claire Kovalik is days away from being unemployed—made obsolete—when her beacon repair crew picks up a strange distress signal. With nothing to lose and no desire to return to Earth, Claire and her team decide to investigate.

Episode Thirteen takes them to every ghost hunter's holy grail: the Paranormal Research Foundation. This brooding, derelict mansion holds secrets and clues about bizarre experiments that took place there in the 1970s. It's also famously haunted, and the team hopes their scientific techniques and high tech gear will prove it. But as the house begins to reveal itself to them, proof of an afterlife might not be everything Matt dreamed of.

Once every year, Scoutmaster Tim Riggs leads a troop of boys into the Canadian wilderness for a weekend camping trip - a tradition as comforting and reliable as a good ghost story around a roaring bonfre. The boys are a tight-knit crew. There’s Kent, one of the most popular kids in school; Ephraim and Max, also well-liked and easygoing; then there’s Newt the nerd and Shelley the odd duck. For the most part, they all get along and are happy to be there - which makes Scoutmaster Tim’s job a little easier.

A group of close friends gathers at a secluded cabin in the wintry mountains of Colorado for a final holiday hurrah. Instead, it may be their last stand. First a massive blizzard leaves them marooned. Then the more chilling realization: Something is lurking in the woods, watching them, waiting.... Now a weekend of family, friends, and fun has turned into a test of love and loyalty in the face of inhuman horrors. The only hope for those huddled inside is to fight - tooth and nail, bullet and blade - for their lives. Otherwise, they’ll end up like the monsters’ other victims: bright pools of blood on glittering snow, screams lost in the vast mountains.

Renowned academic Dr Sparling seeks help with his project on a remote Irish village. Historical researchers Ben and Chloe are thrilled to be chosen—until they arrive. The village is isolated and forgotten. There is no record of its history, its stories. There is no friendliness from the locals, only wary looks and whispers. The villagers lock down their homes at sundown. A nameless fear stalks the streets. Nobody will talk—nobody except one little girl. Her story strikes dread into the hearts of the newcomers. Three times you see him. Each night he comes closer.

The Ruins follows two American couples enjoying a pleasant, lazy beach holiday together in Mexico. On an impulse, they go off with newfound friends in search of one of their group, the young German who, in pursuit of a girl, has headed for the remote Mayan ruins, site of a fabled archeological dig.

Allie Hilts was still in high school when a fire at a top-secret research facility released an air-borne pathogen that quickly spread to every male on the planet, killing most. Allie witnessed every man she ever knew be consumed by fearsome symptoms: scorching fevers and internal bleeding, madness and uncontrollable violence. The world crumbled around her. No man was spared, and the few survivors were irrevocably changed. They became disturbingly strong, aggressive, and ferocious. Feral.

Simon and Vicky couldn’t seem more normal: a wealthy Chicago couple, he a respected law professor, she an advocate for domestic violence victims. A stable, if unexciting marriage. But one thing’s for sure: absolutely nothing is what it seems. The pair are far from normal, and one of them just may be a killer. When the body of a beautiful socialite is found hanging in a mansion in a nearby suburb, Simon and Vicky’s secrets begin to unravel. A secret whirlwind affair. A twenty-million-dollar trust fund about to come due.

The world’s food supply grows aggressively, occupying every inch of earth, no matter how inhospitable. World hunger is averted. Humanity flourishes. RC-714 is digested, absorbed…and passed on. The Change affects small fast-breeding mammals first. They multiply with the same aggressive speed as the ExoGen plants, but an insatiable hunger drives them to violence. A war between species breaks out. When RC-714 reaches humanity, along with every other large creature on the planet, civilization implodes. 

In the summer of 1994, psychologist Daniel Hill buys a rustic farmhouse nestled in the rolling hills of West Virginia. Along with his wife and teenage daughter, the family uproots their lives in Ohio and moves south. They are initially seduced by the natural beauty of the country setting. That soon changes when they discover a hidden room in the basement with a well, boarded shut and adorned with crucifixes. Local legends about the previous owner being an exorcist come to light, but by then, all Hell has broken loose.

On a desolate beach in far northern Scotland, the winter storms have been washing up all manner of things since time began. But buried in the centre of one smaller iceberg is a shard of ancient Viking pottery telling a partial tale of a hidden mysterious island beyond the ice and mist, that was home to a great treasure and even greater horrors. Thawing in the same block of ice was a rotting flap of skin that refused to be identified but had similar skin patterns to a creature not seen for 100 million years.

January 1937. Jack Miller has just about run out of options. His shoes have worn through, he can't afford to heat his rented room in Tooting, and he longs to use his training as an specialist wireless operator instead of working in his dead-end job. When he is given the chance to join an arctic expedition, as communications expert, by a group of elite Oxbridge graduates, he brushes off his apprehensions and convinces himself to join them.

Documentary filmmaker Alice Lindstedt has been obsessed with the vanishing residents of the old mining town, dubbed “The Lost Village”, since she was a little girl. In 1959, her grandmother’s entire family disappeared in this mysterious tragedy, and ever since, the unanswered questions surrounding the only two people who were left - a woman stoned to death in the town center and an abandoned newborn - have plagued her. She’s gathered a small crew of friends in the remote village to make a film about what really happened.

Lifestyle journalist Katrine escaped past traumas by moving to a coast renowned for seaside holidays and natural beauty. But when a vast hoard of human remains and prehistoric artifacts is discovered in nearby Brickburgh, a hideous shadow engulfs her life. Helene, a disillusioned lone parent, lost her brother, Lincoln, six years ago. Disturbing subterranean noises he recorded prior to vanishing, draw her to Brickburgh's caves. A site where early humans butchered each other across 60,000 years. Upon the walls, images of their nameless gods remain.