Heris Serrano-- formerly a commander in the Regular Space Service-- must take whatever job she can get after her resignation under a cloud. What she can get is the captaincy of a rich old lady's space yacht ... a rich old horsewoman, who has little liking for the military, and whose spoiled nephew Ronnie (and his equally spoiled friends) have been foisted on her after his folly embarrassed the family. Lady Cecelia's only apparent interest is horses-- she intends to go fox hunting on the private pleasure planet of a friend of hers, Lord Thornbuckle. But events conspire to make it far more than a fox hunt