High school seniors on a geology field trip to a cave encounter problems not listed in the course outline.

To escape her abusive boyfriend, Kat joins a wilderness expedition with a group of women, all of whom are struggling with the uncertainty of life. What was supposed to be an opportunity for personal discovery quickly becomes a fight for survival, forcing each one to discover the strength within themselves that they didn't even know they possessed. While being brazenly chased by a pack of predators, the strong quickly set themselves apart from the weak. In a battle of will, stamina, and heart, these very virtues present themselves at the most crucial moment. With death looming, each is left with what is truly important - the strength within oneself.

Medical intern Billy McKinley arrives in the small town of Devil's Lake and finds himself thrust into the middle of a mystery as a string of unsolved murders start just as the annual Harvest Festival is about to begin. The murders happen to be similar to those of 20 years earlier. Has the original killer resurfaced or has a copycat come to take his place? Now, Billy must find a killer and save the town before it's too late.

Five college friends choose to spend their vacation debauching at the riverside. They find the perfect place to camp out, but end up crossing paths with twin brothers, Simon and Stanley. The twins then begins to knock off the campers in some extremely creative (and extremely gruesome) ways.