Having developed aspirations to compete in endurance (as well as dressage and eventing!) since filming the sport for Horse Hero, Fiona takes part in her third 40 km ride, this time, at Barbury Castle with GB team rider Rachel Claridge. Riding Rachel's arab pony, Fiona has a nervous moment when Zar is stressed before the race and almost fails the pre-ride vetting, on heart rate! But once they get going Zar gives Fiona a fabulous ride on the breathtaking Ridgeway, mostly in extended trot, with various crewing points along the way. Will she complete fit and sound so she can qualify to ride longer distances next season?