The Vaillant have signed up for a race in which the team of Lord and Lady Claridge mitfährt. The noble couple invites the Vaillants to refer to her country estate Quartier. As Michel himself while skiing the wrist sprained, Steve will go to the start time. During a tour with Clarisse, the alleged daughter of the house, Steve suddenly disappears without a trace. Only Julie guess what might be happening with her colleague and embarks on a feverish search for him ... (information from the German series "Michel Vaillant")
