S6.E1 ∙ Een Toevallige Ontmoeting (De Verdwenen Kroon) Mon, Jan 04, 1988 In "Bassie and Adriaan: De Verdwenen Kroon" the duo deals with their old enemies, de Baron, B2, and Vlugge Jaapie, who have stolen a crown. Bassie and Adriaan need to get the crown back and clear their names. 8 /10