After his last attempt, Professor Nikolajew again spent a lot of time trying to find new ideas and ways to get his flying machine up and running. He proudly presents the incredible effect that occurs when throwing peppermints into a cola bottle. Then, he tries once again using the material of wood. A promising phone call leads him to the Dornier Museum for Aerospace in Friedrichshafen, where he receives a decisive hint about an improved prototype developed by the Eulenstein brothers.