In Weelde, a village near Den Bosch, in the Catholic south of the Dutch kingdom, a bridge is planned, which would actually help the secret Nazi invasion plans. It's controversial in local politics, with the dominant Catholic conservative alliance of farmers and squire Van Weerde-Lawieck as formidable opponents. Powerful entrepreneur Nico Brenner is tipped off by an abused son in law that a crucial field sale isn't final yet and weighs on the banker to block it. New arrivals are Dutch government officials for the project and young northern doc Anton Meerdink, whose father-in-law bought him a medical practice there.