The Little Rebels (1955)

Judge Julien Lamy regularly deals with the welfare of children, namely delinquents. When orphan Alain burns down a barn belonging to his abusive foster family, Lamy has no choice but to send him to a juvenile jail. There, he meets elder Francis, desperate to escape and reunite with his girlfriend. The boys eventually flee, as Francis goes in search of his lost love and Alain continues seeking his biological family.