In the summer of 2011, countless meteorites fell to the earth, causing the destruction of coastal cities in 12 countries. It turns out that the meteorite is actually controlled by a group of mysterious aliens. Aliens landed on the earth with meteorites and launched cruel and ruthless massacres and destruction. As the world's number one superpower, the United States naturally cannot avoid this disaster. As there are more invaders, only Los Angeles in the Western Pacific in the United States has not yet fallen. Marine Corps Sergeant Mike Naz (Aaron Eckhart) is ordered to join Lt. William Martinez (Ramon Rodriguez)'s team to prepare for a life-and-death battle with aliens. At this time, the alien invaders successfully landed and entered the densely populated Santa Monica area. The military decided to lure the enemy deeper and then launch air strikes on the enemy. In order to rescue innocent people, Naz and Martinez's team rushed in without hesitation...