In the year 1280 AD, Scotland is thrown into chaos following the death of its king, who left no heir. An ambitious invasion led by King Edward I of England, known as Longshanks (Patrick McGoohan), quickly sees Scottish nobles capitulate without a united front. Among them is William Wallace (Mel Gibson), a young man who bears witness to the brutal betrayal of his kin when Longshanks invites the nobles to a peace treaty and subsequently orders their execution.
After surviving the assassination of his father and brother, Wallace is taken abroad by his uncle Argyle for education. Years later, upon returning to Scotland, he discovers that Longshanks has imposed the horrifying Primae Noctis, a feudal right allowing lords to bed newly married Scottish brides. Determined to create a peaceful life, Wallace marries his childhood love, Murron MacClannough ([Catherine McCormack]), in secret to protect her from this cruel fate.
However, their happiness is shattered when an English soldier attempts to assault Murron. After a fierce struggle, Wallace is unable to save her from being captured and eventually executed by the local sheriff, who chillingly states, > "an assault on the King's soldiers is the same as an assault on the King himself." Fueled by vengeance, Wallace retaliates against the English, rallying his fellow Scots to join the fight against their oppressors.
As Wallace's reputation grows, he encounters colorful allies, including Stephen ([David O'Hara]), who claims kingship over Ireland, and seeks to gain the support of Robert the Bruce ([Angus Macfadyen]), a nobleman torn between loyalty to his father and his admiration for Wallace. During this period, Princess Isabelle (Sophie Marceau), neglected by her husband Edward, finds herself captivated by tales of Wallace's bravery.
The tension escalates leading to significant battles, including the Battle of Stirling, where Wallace's tactical genius leads to a stunning victory against English forces, igniting a spark of hope for Scottish freedom. Following the conflict, infighting among the Scottish nobles prevents them from naming a king, but Wallace’s vision drives him to plan an assault on England itself.
As he builds his forces, Longshanks retaliates by sending Isabelle to negotiate with Wallace, hoping she will be used as bait. Despite the temptation of riches and titles offered by Longshanks, Wallace remains steadfast and honorable, intriguing Isabelle further. Yet, betrayal lurks within his ranks, leading to devastating losses at the Battle of Falkirk.
In the aftermath of the battle, Wallace becomes increasingly isolated, fighting a guerilla war against the English while dealing with feelings of betrayal and loss. The stakes rise when Robert the Bruce, disillusioned with his father’s schemes, reconciles with Wallace. Meanwhile, Isabelle concocts a revenge plot against Longshanks, revealing her pregnancy with another man’s child.
Ultimately, Wallace is captured, tried for treason, and condemned to a gruesome fate. Yet, even in his final moments, he defiantly declares, > "Freedom!" as he sees a vision of Murron in the crowd. Years later, in 1314 AD, the legacy of his fight for independence ignites a fierce rebellion as Robert the Bruce leads Scotland's army into battle, reminding his troops of Wallace’s sacrifice, ultimately securing Scottish freedom on the fields of Bannockburn.
