Bluebardo in Trouble. Mr. Meloni comes to visit and presents Sara with a device to take part in his class. Mia also wants Sara to go back to school. Sara is reluctant. In Centopia, Mia, Mo and Yuko are witnessed as a beautiful, giant butterfly slips. The friends accompany him on his first flight attempts, not knowing that they would lure Gargona, Dax and the hoppers on their track.