It is 1814. There is peace in Europe as a defeated Napoleon is sent into exile on the island of Elba. Major Sharpe is assigned to head the Scarsdale Yeomanry in his native Yorkshire, depriving him of a chance to settle the score with his adulterous wife Jane and her lover, Lord Rossendale.

Sharpe and Regimental Sergeant Major Harper are met on their arrival by Captain George Wickham, an officer in the Yeomanry. As he escorts them to town, they are ambushed and shot at. Sharpe pursues (but does not catch) one of the men, who turns out to be his close childhood friend, Matthew Truman.

Wickham takes Sharpe to meet Sir Willoughby Parfitt and Sir Percy Stanwyck, wealthy businessmen who own many cotton mills between them. Parfitt tells Sharpe about the post-war unrest. The discharge of men from the army has flooded England with unemployed workmen; the increased competition and a reduced demand for cotton gives Parfitt an excuse to lower wages. He is opposed by Truman, a rabble rouser who stirs up the discontented, poverty-stricken masses.

Meanwhile, the financially strapped Rossendale inherits an estate in neighbouring Lancashire. He had used his influence to get Sharpe posted as far from London as possible, but now has to relocate (with Jane) nearby. Both Rossendale and Jane speak with Sharpe separately, but nothing is resolved.

Dan Hagman, one of Sharpe's former riflemen, shows up looking for work, but turns down Sharpe's offer - nine years in uniform is enough for him. He becomes a follower of Truman.

When Sharpe hears of an illegal meeting, he orders his soldiers to tread gently, but Wickham deliberately disobeys his orders and incites a massacre; Truman gets away in the confusion. However, Wickham cleverly manages to place all the blame on Sharpe.

Sharpe visits Sally Bunting, a woman who had been kind to him in his childhood. From her, he learns that his mother is dead and also that Truman is his brother (or more likely half-brother). He arranges to meet with him at their mother's grave. Parfitt learns of it and sends Wickham to take them both. Sharpe, Harper and Hagman get away, but Truman is shot dead by Wickham.

While in hiding, Sharpe is warned by Lady Anne Camoynes that Parfitt and Wickham intend to secretly intercept and destroy a steam engine that Stanwyck is bringing in, in order to weaken his business rival. They intend to blame it on disaffected machine wreckers. Sharpe and his friends foil the scheme, catching Wickham red-handed. Sharpe uses this to blackmail Parfitt into clearing his name. In the end, Sharpe heads back to London, Harper to Ireland, while Hagman stays behind, having taken a liking to Sally.

• Sean Bean – Major Richard Sharpe
• Daragh O'Malley – Regimental Sergeant Major Patrick Harper
• Abigail Cruttenden – Jane Sharpe
• Caroline Langrishe – Lady Anne Camoynes
• Philip Glenister – Matt Truman
• John Tams – Rifleman Daniel Hagman
• Douglas Henshall – Captain George Wickham, namesake of a character in Jane Austen's novel Pride and Prejudice
• Alexis Denisof – Lord Rossendale
• Tony Haygarth – Sir Willoughby Parfitt
• Karen Meagher – Sally Bunting
• Philip Anthony – Sir Percy Stanwyck
• Philip Martin Brown – Saunders
• Sean O'Kane – Lt. Fosdyke
• Henry Moxon – Whitbread
• Rita May – Mrs. Trent
• Richard Bremmer – Arnold
• Tony Aitken – Horse Guards Clerk
• Nick Conway – Sam West
• Matthew Lewis - boy in workhouse

• Sharpe's Justice at IMDb  
• Sharpe's Justice at SharpeFilm.com