Uncle Trotter left Yam-Yam and Alexander is left alone. During the holiday he is sent to colony Kinderpret, where he does not like it at all. To make matters worse, his arch enemy Evert van Dam is also walking around … Fortunately, Uncle Trotter is just getting up again at the right time. He takes Alexander on a fantastic trip to Papua New Guinea, to the village of Jiatsi, where Alexander’s good friend Yam-Yam lives. He will never forget what he is going through there.