drone repairmen stationed on Earth.Jack repairs drones and his memory was erased as part of the security process to stay on Earth, and he knows that Earth is completely depleted after sixty years of war against the alien invaders Scavengers-Scavs.  Now Jack has to protect the power stations that use the ocean to supply energy to Titan fixing the drones.Living in and patrolling the skies from thousands of feet above, his existence is brought crashing down when he rescues a 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.