 The royal couple finally sets out for a trip to the sea, leaving Kulderzipken and Princess Prieeltje home to practice behaving like a royal couple- the Grimm brothers are in charge of supervising they do it in a dignified, stately and majestic way. King Jozef keeps trying to cheat at his diet, and Angina is no good at stopping him, but shortly after shaking a strange passer-by s hand he realizes who it was: the Wooden Man, sort of a walking tree, whose touch changes people into trees! While he starts shooting root and sprouting leafs and branches, the queen rushes back to the castle, but the Wooden Man arrived first, so the Grimms she hoped would help are turning into trees themselves, singing strange songs involving wood (such as  bacon with rough planks , the episodes title in Dutch) to kill time. That leaves only Prieel, who s enjoying jumping on the royal bed -forbidden- and Kulderzipken; they immobilize the wooden men by nailing to and trough a door, and when the Grimms turn normal again he realizes what saved them...