Los Angeles is under attack! When a top secret experiment goes haywire, thousands of rampaging raptors are unleashed on L.A. A black-ops unit is mobilised to contain the creatures before they cause city-wide chaos. One truckload of raptors is sent to a nearby prison where a trio of hot sorority girls are getting booked after a prank gone wrong. These girls have to pull all their wits together to battle these blood-thirsty creatures, with a little help from a dangerous mercenary and some death-row inmates who have nothing to lose. They soon discover that these prehistoric monsters are everywhere, and they’re hungry…