Perhaps

A young Albanian immigrant and his French fiance decide to pay a surprise visit to his native village. Their surprise turns sour when his family learns the true reasons behind their son's return.

Sixty years after the nuclear devastation, a few survivors cling to life in a ruined industrial zone. Ten-year-old Niko lives with his grandfather Lexi, convinced that their territory is a "paradise" worth defending. Lexi indoctrinates Niko to hate the rival survivors across the railroad tracks. A violent confrontation with a feral child triggers a brutal conflict in which the children serve the adults' power struggles. As the adults' violence escalates, Niko realizes that Lexi is not the man he thought he was. The arrival of Xeni's family reveals that borders are a prison, and escape threatens deadly consequences for the children.