The magazine, Riding, has run a competition and six winners have been selected to go to Blainstock Castle for two weeks to compete for the grand prize, a weekend for two at the Spanish Riding School in Vienna. The winners include Charles Ravenscroft, Susan Barington-Brown, Lettie Lonsdale, Janet Fawley, Patrick Huntingdon and Rennie Jordan. They take part in a number of competitions and a grand prize winner is selected. While they're still at the castle, a couple from America and their horse trainer arrive, having rented the Dower House for a year. Jill has just returned from Australia, where she was on a showjumping tour. She helps with the organisation of the prize winners' activities, but finds herself caught up in the drama of the new arrivals and has to make some drastic decisions.