After a devastating alien invasion by the merciless beings known as The Ancients, Almost all life on Planet Earth was extinguished. The last human survivors built a gigantic space ship called The Ark and used it to flee the planet.

The last humans have fruitlessly wandered the galaxy in search of a new home. Meanwhile, the Ancients continued their relentless pursuit. Finally locating The Ark, they launched an attack in their attempt to obliterate all humankind. But they were in for a surprise. The time spent wandering space was well spent, as human scientists developed new and better weapons to deal with the Ancients. As the best pilot in the fleet, it is your duty to defend The Ark and ensure humanity survives.