Tilly and Henry have asked Bob and the team to convert Fixham Castle into a spectacular wedding venue. When Scoop learns there will be a 'Best Man,' he volunteers to be 'Best Machine. ' But the job goes to his head as he tries to be the very best at everything, resulting in a disastrous wedding rehearsal. Scoop learns that he doesn't have to be the best at everything and that it is important to know your limits.