Season 4 episode 10. Lightning Pegasus is in the pony bag. In the fourth season, episode 10, Bao Yun was forced to join the Flying Horses because the Lightning Flying Horses were short-handed. Pony Polly, an American toy manufacturer, explored a set of cartoon albums, which began to be broadcast on American home TV channels on 2010/0. The main scene in the story is a kingdom full of fantasy style ruled by Princess Universe and Princess Moon. It was established after the migration of three pony races (land horse, flying horse and unicorn) in ancient times. "Princess" is the title of the monarch of this kingdom, not the king or queen; Only horned beasts can be called princesses.