The year is 2054, and 2 alien species have chosen Earth as a battleground for their war. Humanity attempted to fight back, using mechs called Skells, but could not hold up. Sensing Earth's destruction, the governments choose for humanity to evacuate the Earth on a great spacecraft known as the 'White Whale'. However, they were pursued by one of the alien races, and, drawn into the gravitational field of a nearby planet, the Ship split up and crashed. Miraculously, there were many survivors, but many of them are lost in places around the planet, now known as 'Mira'. The customizable main character, Cross, is a survivor found in a stasis pod in Primordia, the continent in which the entire city of New Los Angeles was crashed.