Since the 1970s, FantasticLand has been the theme park where "Fun is Guaranteed!" But when a hurricane ravages the Florida coast and isolates the park, the employees find it anything but fun. Five weeks later, the authorities who rescue the survivors encounter a scene of horror. Photos soon emerge online of heads on spikes outside of rides and viscera and human bones littering the gift shops, breaking records for hits, views, likes, clicks, and shares.

Thirty years after a tragic accident shut down production of the classic children’s program Mister Magic, the five surviving cast members have done their best to move on. But just as generations of cultishly devoted fans still cling to the lessons they learned from the show, the cast, known as the Circle of Friends, have spent their lives searching for the happiness they felt while they were on it. The friendship. The feeling of belonging. And the protection of Mister Magic.

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.

Hannah awakens to carnage, all mangled metal and shattered glass. After she was evacuated from a secluded boarding school during a snowstorm, her coach careered off the road, trapping her with a handful of survivors. They’ll need to work together to escape—with their sanity and secrets intact. Meg awakens to a gentle rocking. She’s in a cable car stranded high above snowy mountains, with five strangers and no memory of how they got on board.

They call them wayward girls. Loose girls. Girls who grew up too fast. And they’re sent to Wellwood House in St. Augustine, Florida, where unwed mothers are hidden by their families to have their babies in secret, to give them up for adoption, and most important of all, to forget any of it ever happened. Everything the girls eat, every moment of their waking day, and everything they’re allowed to talk about is strictly controlled by adults who claim they know what’s best for them.

As the daughter of a rancher in 1840s Mexico, Nena knows a thing or two about monsters—her home has long been threatened by tensions with Anglo settlers from the north. But something more sinister lurks near the ranch at night, something that drains men of their blood and leaves them for dead.

When Alex Easton, a retired soldier, receives word that their childhood friend Madeline Usher is dying, they race to the ancestral home of the Ushers in the remote countryside of Ruritania. What they find there is a nightmare of fungal growths and possessed wildlife, surrounding a dark, pulsing lake. Madeline sleepwalks and speaks in strange voices at night, and her brother Roderick is consumed with a mysterious malady of the nerves. Aided by a redoubtable British mycologist and a baffled American doctor, Alex must unravel the secret of the House of Usher before it consumes them all.

High up on the windswept cliffs of Pale Peak, Faye and Felix celebrate their new engagement. But soon, a chorus of ghastly noises erupts from the nearby woods: the screams of animals, the cries of children, and the mad babble of a hundred mournful voices. A dark figure looms near the windows in the dead of night, whispering to Faye. As the weather turns deadly, Felix discovers that his terrified fiancée isn't just mumbling in her sleep—she's whispering back.

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.

Nobody has a “normal” family, but Vesper Wright’s is truly...something else. Vesper left home at eighteen and never looked back—mostly because she was told that leaving the staunchly religious community she grew up in meant she couldn’t return. But then an envelope arrives on her doorstep.