Part 6: The riders jump a bigger course with wider oxers. They focus on honing the skills they learned in the lesson, and getting a nicely shaped jump while maintaining their position. Boyd works with a rider who has a refusal on her schoolmaster. He reminds her that although the horse is a great jumper who knows the job, he occasionally needs to be reminded who is in charge. They take down some rails and allow the pair to complete the course on a high note.