Not far in the future, Francesca is an apprentice in the idyllic, agrarian community of Heron Fleet. She loves her impetuous partner Anya and the community acts as mother and father to her, as its founders intended. But outside Heron Fleet, the world is violent. Only a remnant of city populations, organised into violent despotic scavenger gangs, cling on by combing through rubble in search of food...