A woman tries to escape her murderous ex by living in hiding with her child.

Los Angeles and other cities around the world are being bombarded by meteors that seem to be slowing down once they hit the earth's atmosphere. The earth is suddenly being invaded by space aliens that have landed off the shore of LA, and who begin killing everybody along the beach. The military is ordered into action. Marine Staff Sergeant Nantz (Aaron Eckhart), who was about to retire, is reassigned to a new platoon. The platoon, flown by chopper to the forward operating base at Santa Monica...

Expert S.W.A.T. leader Paul Cutler goes to Detroit on a special assignment to train and certify the city's S.W.A.T. team. After a hostage is killed during an assignment, the victim's boyfriend, a highly specialized government agent, decides to take revenge on Cutler and his team.