Two sisters and their childhood friend flee the city and seek refuge in an isolated cabin to escape the horrifying outbreak that tore apart their family.

SYNOPSIS:

Most of her family is already dead by the time college track athlete, Kate, finally flees the city. Her thirteen year old sister, April, and their lifelong friend, Max, are the only survivors, so they head into the woods with nothing but a hastily packed bag and a single shotgun to protect them from the monsters on their heels. After a full night of running, too scared to stop, Max’s endurance finally gives out and he collapses, forcing Kate to go on alone to find shelter. Luckily, a smoke signal in the distance leads her to a cabin – a not so empty cabin. When a filthy hand clamps around her mouth, she panics, stabbing blindly at her perceived attacker. It’s not until he’s dead on the floor and she hikes back to her sister covered head to toe in blood that she begins to question her actions. Guilt drives her to hide the body, and the trio takes refuge in the cabin. Kate’s crime is quickly discovered though, and as Max is busy confronting Kate about her lies and the traumas of their recent past, April uncovers a deadly secret of her own. There’s a hidden cellar beneath the cabin floor, and chained up down there is a twelve year old girl, Hannah. April is instantly wary of Hannah, but she still takes out her gag so they can talk. She still keeps Hannah’s presence a secret, saying Kate would kill Hannah in an instant if she knew she was down there. Hannah says she wants to be friends, but mostly she just wants to get out of her chains, something April refuses to help with, not until Hannah proves she’s trustworthy. Strange snapping noises from beneath the floorboards eventually draw Kate to uncover the cellar, and the second she sees the girl with the unnaturally bloodshot eyes chained to the wall, she shoots. April is horrified, but Kate keeps insisting that Hannah wasn’t a person anymore. She was sick, just like their dad. She was a danger to all of them. She had to be put down. April doesn’t want to hear her excuses though, and she takes off, running into the woods. Max and Kate chase after her, worried about “them”: the cryptically referenced threat that might be lurking in the area. April reaches the stream and collapses, crying for her lost friend, and their mom, and everyone else who’s been taken from her. Her sobs cut out abruptly though as she spots movement on the far shore – a man, twisted and deformed with eyes dead and milky, a SNIFFER. Kate and Max arrive just in time, but it takes a full clip of rifle and shotgun rounds together to take down the calloused monster attacking. They’ve killed one, but the bloodcurdling cries echoing out from the woods mean there’s many more of them close by. Sniffer’s always hunt in packs. The three flee back to the cabin and bar the door, and after a full night of hiding, the Sniffers finally lose interest and wander off. Max heads outside at April’s request to dig a grave for Hannah, and finds that the Sniffers spent the night gnawing on the remains of the man Kate buried in the yard. They’ll be back soon. They’re always hungry. But it’s not the Sniffers that show up that night. It’s something far worse, a REVENANT, a horrifying imitation of the person it was when it was still alive, like Hannah, still walking and talking like a human being rather than a demon with a familiar face. Kate recognizes this face as the mother she abandoned to die on the highway when their car broke down. April recognizes her too, but Max keeps her silent as Kate struggles to ignore the Revenant’s pleadings to open the window and let her inside. When Kate can’t take any more of it though, she snaps, shooting the window and causing the Revenant to retreat. The BOOM of the riffle alerts the pack of Sniffers still roaming the woods nearby, but they bar the doors and survive the night hunkered down in the cellar. They don’t dare leave for days, at which point Kate decides they need to abandon the cabin entirely, continue on to Max’s hunting cabin on the lake, the refuge they planned on reaching when they first left the city. The Revenant of her mom won’t leave them alone after all, not now that she knows where to find them, but if they leave in the day it’s just the Sniffers they have to evade. Revenants can’t expose themselves to sunlight after all. When they do, it triggers a horrifying transformation from Revenant into Sniffer, something the trio gets to see firsthand when they come across the cave their mother was using to survive the daylight. Kate steels herself and drags the Revenant trying to entrap them out into the sunlight, showing April it’s true monstrous form before finishing it off. She’s injured in the fight though, and there’s more Sniffers in the woods, closing in on their location. Kate knows she’s infected, so she says her goodbyes, telling Max and April to stay hidden while she draws away the Sniffers. April tearfully accepts her decision, urging Max that maybe she’ll survive and they’ll see her again someday. Just maybe...