The Great War rages for Captain James "Crash" Jackson; as he chases his desire to become a flying Ace but when disaster strikes his future takes a different path and uncovers a secret project to explorers the stars. Scarlett Byrne fights a different war; one for her own survival on an unforgiving planet where she fits nowhere, looking constantly to the stars for any chance of escape. Catapulted together these two must rediscover themselves, plan a rescue and challenge a rising evil. Battles unfold as impossible science and titanic beasts clash across the alien landscape of Jahannam.