It is the year 3098, and Earth has been destroyed by pollution and global warming. Humans filter air and water and are forced to live in artificial environments on Earth's dry surface. A partnership with their allies is their only means of survival. Science is on a verge of a breakthrough that will save the planet, Maintenance keeps the cities functioning and BattleField—made up of Earth's heroes—defends Earth and its allies to ensure a brighter future.
When two BattleField recruits, teenagers Tom and Brent, intercept a missive of war, they embark on a mission to save the human race.