The discovery was a complete surprise to Winkler. Jeff Dye had enlisted Winkler's three children in a loving conspiracy, and they knew every step in his journey around Berlin. A letter from them was waiting for him, tucked into the building's number plate. In the deeply moving letter, they drew together the threads of all the experiences created for the episode. "Even though the Winkler history in Berlin is heartbreaking, we thought it was important for you to connect with the past through this hopefully fun adventure, and connect you did..."