Jeff Hinkley, a British Horseracing Authority investigator, has been seconded to the US Federal Anti-Corruption in Sports Agency (FACSA), where he has been asked to find a mole in their organisation, an informant who is passing on confidential information to fix races. Jeff goes in search of answers, taking on an undercover role as a groom on the backstretch at Belmont Park racetrack in New York. But he discovers far more than he was bargaining for.

When Mark Shillingford commentates on a race in which his twin sister Clare, an accomplished and successful jockey, comes in third, he can't help but be suspicious. As a professional race-caller, he knows she should have won. Did she lose on purpose? Was the race fixed? Why on earth would she do something so out of character? That night, Mark confronts Clare with his suspicions, but she storms off after an explosive argument. It's the last time Mark sees her alive.

As one of the youngest ever winners of the Grand National, Nick ‘Foxy’ Foxton’s career as a world-class jockey is on perfect track until a near-fatal accident cuts his dream brutally short. But when he returns to Aintree as a spectator years later, nothing can prepare him for what unfolds. Minutes before the biggest event on the racing calendar, Nick’s affable American colleague Herb Kovak is shot at point-blank range, the gunman disappearing among the stunned crowd.

Chris Rankin is a doctor, a specialist in emergency medicine at Cheltenham Hospital, but a doctor who also has health problems. A smartly dressed man has been found unconscious at the local racecourse and is rushed to the hospital, where he subsequently dies. But who is he? Where does he come from? He had no form of identification on him, and no one claims the body.

The night before the 2,000 Guineas at Newmarket sees the great and the good of the horse-racing community gathered for a prestigious black-tie gala dinner. It is a fitting testament to the glamour of the occasion that celebrity chef and restaurateur Max Moreton is cooking the evening's meal. But the last thing he needs is to hear that his food is suspected of putting 24 of the guests in hospital.

On the first day of Royal Ascot, the crowd rejoices in a string of winning favorites. Ned Talbot has worked all his life as a bookmaker – taking over the family business from his grandfather – so he knows not to expect any sympathy from the punters as they count their winnings, and him his losses. He’s seen the ups and downs before – but, as the big gambling conglomerates muscle in on small concerns like his, Ned wonders if it’s worth it any more.

Captain Thomas Forsyth’s second tour of Afghanistan is cut brutally short when he’s badly wounded by a roadside bomb. Tom’s world is torn apart by the injury – the Army is his life. The thought of never rejoining his regiment is a terrifying prospect and one that he is not willing to entertain. Tom returns to Lambourn, to his childhood home, where his mother is a racehorse trainer and the ‘First Lady’ of racing.

When defence barrister Geoffrey Mason hears the judge’s verdict, he quietly hopes that a long and arduous custodial sentence will be handed down to his arrogant young client. That Julian Trent only receives eight years seems all too lenient. Little does Mason expect that he’ll be looking Trent in the eyes again much sooner than he’d ever imagined.

When Kit Fielding, champion steeplechase jockey, finds out that his chief patron, Princess Casilia, is facing an increasingly serious threat, he goes unhesitatingly to her aid. Neither realises that his instinctive support is the first step towards a frightening battle involving violent risk, with the honour of the princess's family as the prize and Kit's own destruction as the forfeit.

A British jockey, riding in Norway, has disappeared, and with him has gone a day's takings from the turnstiles of Oslo racecourse. The Norwegian police have found no trace of him, nor have the British, and the case is being filed as just one more unsolved theft. David Cleveland, investigator for the Jockey Club, is a last resort. He goes without much expectation, and finds himself in waters as dark and deep as the fjords.

When a sick friend asks Edward Lincoln to investigate the comprehensive failure of a string of racehorses, he agrees to help out. But it is impossible for him to go about the task quietly and unnoticed because he is now a world-class star of action films, in which he always plays the hero. And the apparently easy survey of the string of racehorses blows him through a smokescreen into circumstances, where, to survive, he has to make himself become the man everyone else already thinks he is.

Jockey Kelly Hughes and trainer Dexter Cranfield had been barred from racing – a devastating event for them both. The charge at the secret enquiry? Throwing a race for personal profit. It was a vicious frame-up and, worse, they had nowhere to turn to clear their names. Still Hughes refused to take the phony verdict lying down – even though his quest to clear his name might have him lying down permanently.

Gene Hawkins, investigator by trade, was expert at arranging events so that they appeared accidental to all involved. Therefore, when he himself witnessed an ‘accident’ his curiosity flared up bright, and he insisted on looking into what he regarded as a work of art. A quarter of a million pounds worth of Derby-winning stallion had vanished into the Blue Grass of Kentucky... and a young man and a girl spent a dangerous afternoon in a punt on the River Thames.

Steeplechase jockey Kit Fielding has just ridden another winner for his patron – the Princess – when his distraught twin sister Holly comes to him with terrible news. A newspaper is printing stories that will put her husband, Bobby Allardeck, and his stables out of business.Putting aside the age-old Fielding-Allardeck feud, Kit decides to try to find out who is behind these cruel stories.

When jockey Martin Stukely dies following a fall in a steeplechase at Cheltenham races, he accidentally embroils his friend Gerard Logan in a perilous search for a stolen videotape. Gerard Logan is a glass-blower on the verge of widespread acclaim for his work. He has long been accustomed to the frightful dangers inherent in molten glass and maintaining a glass-making furnace, but now he is suddenly faced with a series of unexpected threats, first to his livelihood, then to his courage, and finally, to his life.