It is the far future and the earth has evolved beyond recognition leaving Jack Harper (Tom Cruise) as one of the last few drone repairmen stationed on Earth. A massive operation to extract vital resources after decades of war with a terrifying threat known as the Scavs is nearly completed. Living in and patrolling the breath-taking skies from thousands of feet above, Jack's soaring existence is brought crashing down when he rescues a beautiful stranger from a downed spacecraft. Her arrival triggers a chain of events that forces him to question everything he knows and puts the fate of humanity in his hands.