The shocking experience traumatized young John Bolle. He believes that the Zeeland delta should be restored in its original state. He mobilizes a number of supporters. Under his leadership, they work out a dangerous plan to inflict much damage to the Eastern Scheldt storm surge barrier so that the water will flow freely into the Eastern Scheldt area, and the ecological system will be restored to its former glory. The AIVD agents, Marnix Bijkerk and Diana Dingemanse, get the group of environmental activists, which operates under the name DEDELTAWAY on the track. They make every effort to unmask the environmental terrorism suspect group, to prevent an environmental disaster. They are helped by Rudy Stouthart who is enamored with Diana. This creates a very explosive situation that will surely arouse memories to many readers. Can the Delta be saved in time from destruction?