Earthquakes rip through the wah-less desert of the Void tearing deep jagged wounds through its heart in a post-apocalyptic dystopian Australia. Racing with the wind and against time, Mika, Stokes and Skoshi rescue stranded prisoners from certain death, running just ahead of escalating disasters that seem to shadow their every turn. Seeking shelter in the Outlander's Enclave on the great salty billows, they are joined by hundreds of drone-vets who've quit their dwellings to follow them on the rumored freedom-track. Skoshi, Mika and Healer Sam uncover ancient clues to a 400-year old riddle and the trail leads to a cache of ancient ships for crossing the billows, with a vast storehouse of knowledge in seafaring, farming, building and freedom to prepare them for a new life in a new land. But ferocious storms and rumors of ancient plagues resurface and as unseen forces drive them to the brink of despair, they are hunted, hounded and threatened by gatherers and Assembly guards. Just as escape appears within their grasp, an all-out assault by the City-brights draws them back into a disintegrating Void, jeopardizing their quest for freedom.