True story: in 1864, a group of emigrants travelling through Donner Pass, California, became trapped by such heavy snow that some of them eventually resorted to cannibalism in order to survive.
Not quite so true story: in 2014, BA_Harrison resorted to chewing off his own legs in order to relieve his frustration at watching yet another run-of-the-mill slasher in which a bunch of unlikeable teens get slaughtered by a homicidal maniac.
After a reasonable intro in which we witness the gruesome events of Donner Pass, 1864, this film follows a group of present-day teens who travel to a remote cabin for a weekend break only to be bumped off one-by-one by a mysterious killer. Ho-hum.
To be fair, Donner Pass does get slightly better towards the end, when the plot takes a strange turn involving rape/revenge, and a cannibalistic antagonist who can pass 'the hunger' to his victims, but for the most part it is routine teen-friendly nonsense the likes of which we have seen countless times before.
A brief bit of topless action from a soon-to-be-dead blonde in a hot-tub and some reasonable gore (including one character who gets a pick-axe through the throat AND a claw hammer in the eye for good measure) helps to make the time pass a bit less painfully, but you won't be missing much if you decide to pass on Donner Pass.