After the Great War, traumatized Yser front hero Casimir Van De Velde returns home. He's not amused to see his bitchy sister Coralie turned it into a virtual orphanage and home for other juvenile strays while their father, an even worse traumatized sniper but now utter lush, has to be chained in a barn. Yet Casimir soon takes to the kids and grows utterly protective of the irregular commune, which displeases the municipal authorities, who want the minors placed in official care and the land used for a project of the mayor's business ally. French colonial cavalry veteran Latiff was hired into a band of ruffians to chase them, but decides to join instead and fight off the fiends.