Butterfinger the 13th (2011)

Angela Baker escapes from a mental hospital and surfaces at a summer camp as a counselor who lectures her teenage charges on proper moral behavior. Those teens who break her strict rules -- from the camp chatterbox or a sex-obsessed girl to the boys who are peeping Toms -- are murdered by the impostor in various gruesome ways. As more campers go missing, intrepid counselor Molly begins to piece together the truth.

A caretaker at a summer camp is burned when a prank goes tragically wrong. After several years of intensive treatment at hospital, he is released back into society, albeit missing some social skills. What follows is a bloody killing spree with the caretaker making his way back to his old stomping ground to confront one of the youths that accidentally burned him.

In the 1820s, a taciturn loner and skilled cook travels west to Oregon Territory, where he meets a Chinese immigrant also seeking his fortune. Soon the two team up on a dangerous scheme to steal milk from the wealthy landowner’s prized Jersey cow—the first, and only, in the territory.

Taking an ill-advised detour en-route to California, the Carter family soon run into trouble when their RV breaks down in the middle of the desert. Stranded, they find themselves at the mercy of monstrous cannibals lurking in the surrounding hills.

The setting is Camp Firewood, the year 1981. It's the last day before everyone goes back to the real world, but there's still a summer's worth of unfinished business to resolve. At the center of the action is camp director Beth, who struggles to keep order while she falls in love with the local astrophysics professor. He is busy trying to save the camp from a deadly piece of NASA's Skylab which is hurtling toward earth. All that, plus: a dangerous waterfall rescue, love triangles, misfits, cool kids, and talking vegetable cans. The questions will all be resolved, of course, at the big talent show at the end of the day.

A group of young gunmen, led by Billy the Kid, become deputies to avenge the murder of the rancher who became their benefactor. But when Billy takes their authority too far, they become the hunted.

Counselors are being killed off at summer camp, and Sam is stuck in the middle of it. Instead of contacting the cops, he calls his friend and slasher-film expert Chuck to discuss his options.

In 1978, two rival groups at Camp Nightwing must band together to solve a terrifying mystery when horrors from their towns' history come alive.

In the Oregon mountains, a pair of hunters encounter a machete-wielding killer in an abandoned church. Meanwhile, five campers arrive to examine some property one of them has inherited but are warned by the forest ranger not to venture forth. Soon after they set up camp, they begin hearing strange noises, encounter a mysterious singing girl and start disappearing one by one.

Following the murder of her father by a hired hand, a 14-year-old farm girl sets out to capture the killer. To aid her, she hires the toughest U.S. Marshal she can find—a man with 'true grit'—Reuben J. 'Rooster' Cogburn.