Embarked on board the ship of Commander Singh'a Rough'a, Valerian and Laureline finally enter the Grand Rien, this unknown space at the bottom of the universe in formation. There, always in search of the disappeared Earth, they will confront the Wolochs, terrifying stone monsters who seem to reign there as silent masters. New fascinating episode of a formidable saga that revolutionized the science of French fiction and which, at the time of its 40th anniversary, will continue exclusively on France 3, with a series of animated cartoons for young people inspired by it.