Five high school misfits are called for detention on a Saturday night by their teacher but as the night closes in an elite group of Space Ninjas begin their invasion on the secluded school. After the Space Ninjas kill the teacher, the students are left to fend for themselves, as they try to escape the school grounds and survive the night.

Emerson Graham's nights as a cab driver are filled with annoyances and inconveniences, but until tonight, never attacks and disappearances. After picking up a mysterious passenger her evening goes from working a job to performing a quest as they must race against the clock to defeat a force of evil. The meter is running.

Six 'teens' head to their cabin in the woods for fun and celebration, but their night quickly turns into danger, murder and cliches.