A misfit group of unwitting high school students stumble upon a cursed object, an ancient Aztec Death Whistle. They discover that blowing the whistle and the terrifying sound it emits will summon their future deaths to hunt them down.

A wildly talented high school girl soccer team becomes the (un)lucky survivors of a plane crash deep in the Canadian wilderness.

Two sisters join their two classmates on a cave dive to explore submerged ruins, only to find themselves hunted by a shark with heightened senses.