In their first mission, Peter Tazelaar was to deliver radio equipment and bring two men back from occupied Netherlands to join the government-in-exile in Britain. Roelfzema had met Tazelaar when the two men had worked as stokers on the St. Cregue during their escape. Roelfzema had often spent time at the seaside resort of Scheveningen and knew that every Friday night a large party was held at the Kurhaus of Scheveningen (Grand Hotel) which had been taken over by the Germans as a headquarters. Their plan was to approach Scheveningen late at night and take Tazelaar into shore by dinghy.