Ripley and Zoe are survivors in a world burned to ashes by the spacefaring Dragoon Swarm. Together with an alien child they rescued, they fight tooth and claw to secure food and water, and evade the toxic fumes that begin to fill the sky.
There's no rest for the weary. With the promise of an ample supply of water hanging over their heads, Ripley and the others on board Oasis start preparing their vehicles for another deadly supply run.