In January 1942, US forces encountered an unidentified flying object above Los Angeles in a dramatic event known as the Battle of Los Angeles. Fast forward almost 70 years later, the extraterrestrial beings have resurfaced, launching a full-scale invasion on the city of Los Angeles in a climactic showdown. The residents of the city must now band together and fight for their survival against the formidable alien threat in what will be a decisive battle for the fate of humanity.