Dockworker Ray Ferrier struggles to build a positive relationship with his two children, Rachel and Robbie. When his ex-wife, Mary Ann, drops them off at Ferrier's house, it seems as though it will be just another tension-filled weekend. However, when electromagnetic pulses of a lightning strike the area, the strange event turns out to be the beginning of an alien invasion, and Ferrier must now protect his children as they seek refuge.
