A police chief in the war-torn streets of Los Angeles discovers that an extraterrestrial creature is hunting down residents - and that he is the next target.

Off-duty cop John McClane is gripped with a feeling of déjà vu when, on a snowy Christmas Eve in the nation’s capital, terrorists seize a major international airport, holding thousands of holiday travelers hostage. Renegade military commandos led by a murderous rogue officer plot to rescue a drug lord from justice and are prepared for every contingency except one: McClane’s smart-mouthed heroics.