Set in the year 2077, Earth has been devastated by an alien war sixty years prior. The human population has supposedly migrated to Titan, leaving Jack Harper (Tom Cruise) and his partner Victoria (Andrea Riseborough) as a "mop-up" crew to maintain drones that protect massive seawater-to-fusion energy harvesters.

, a massive tetrahedral space station orbiting Earth, a few remain behind to oversee the extraction of the planet's remaining resources. The Watcher in the Clouds Jack Harper (Tech 49) and his communications officer and partner,