A rain of strange meteorites crash into a small town where childhood sweethearts Traye and Sal find themselves in the midst of an alien invasion.
Vicious creatures emerge, rampaging through the town carrying a deadly virus, killing and infecting anyone in their path.
Sal narrowly escapes death but is infected with the mysterious alien virus.
With Traye pushed to the edge, they race to the nearest hospital where Sal's sister Katie works as a nurse.
Forced off the road and into an abandoned building, they encounter Dr. Samuel seeking refuge from the local hospital since being overrun by alien creatures.
Trapped together they struggle to survive outside threats, but also the soon to arrive dangerous fourth member to their trio.