Route de nuit - Edition Autoplus

Michel Vaillant and his friend Steve Warson are on vacation on the French Riviera. Benjamin Vaillant, Michel's uncle (who is a carrier in Marseille), sees one of his drivers leave, taking with him Yves Douleac (a young boy close to Michel). Benjamin is afraid that Yves will go astray and asks Michel to intervene. It will not be an easy task because Régis Blancardo, the son of Yves' new boss, is leading him into rather shady deals.