Wrong Turn 4 Bloody Beginnings

The film opens in 1974 at the Glenville Sanatorium with Dr. Ryan(Arne McPherson) showing a local psychiatrist Dr. Ann McQuaid(Kristen Harris) around the psychiatric hospital. The cannibals from the previous films-One Eye, Three Finger, and Saw Tooth now are locked up in the institution. But the cannibals escape, savagely murder an orderly, Dr. Ryan and Dr. McQuaid.
The film then switches to present day where a group of college kids, Kenia(Jennifer Pudavick), lesbian couple Sara(Tenika Davis) and Bridget(Kaitlyn Wong), Lauren(Ali Tataryn), Jenna(Terra Vnesa), and Claire(Samantha Kendrick), along with their guy friends Kyle(Victor Zinck), Vincent(Sean Skene) and Daniel(Dean Armstrong)are going snowmobiling. They are heading to their friend Porter's cabin in the mountains. They get lost in a storm and seek refuge inside the now abandoned Glenville Sanatorium. Little do they know, the three cannibals are hiding out in the sanatorium and murdering trespassers.
The group of teenagers explore the asylum, and decide to wait out the storm. After a montage of rolling around in wheelchairs, drinking booze and acting like teenagers, the storm still hasn't stopped so the teenagers are forced to sleep in the desolate building. In the middle of the night, Vincent, suffering from insomnia, walks around the asylum and finds Porter's mutilated body-apparently he didn't make it to his cabin either. He is then killed by Saw-Tooth-having a metal rod shoved into his chin and out through the top of his head. The next morning, everyone discovers they are still snowed in, and Vincent is missing. The gang splits up to look for him, and Jenna witnesses the cannibals cutting Porter up. She runs back to tell the others and they all meet up in the auditorium. Something wrapped in Porter's jacket is thrown at them and Kenia opens it up to reveal Porter's severed head. Screaming and panicking, the group flocks around the door, trying to get out but the doors are locked. The three cannibals-up in the balcony, throw down a strip of barbwire and loop it around Claire's neck, pulling her up to the balcony. Kyle tries to save her, but it is to late and the barbwire tightens, severing Claire's head. Horrified, what is left of them(Kenia, Sara, Bridget, Lauren, Jenna, Kyle and Daniel) run outside and try to escape on their snowmobiles. But the engines won't turn and it is revealed that the cannibals had stripped them of their spark plug wires. Lauren sets off to ski down the mountain to retrieve help and the other six run inside to try to defend themselves....>>>>>More!