Two white racists, Billy Ray Cobb (Nicky Katt) and Pete Willard (Doug Hutchison), encounter a young black girl named Tonya Hailey (Rae'Ven Larrymore Kelly) in rural Mississippi, subjecting her to a brutal attack before discarding her in a nearby river after a failed attempt to hang her. Thankfully, Tonya survives, leading to the arrest of her attackers.
Concerned about the possibility of the men escaping justice due to pervasive racism in the region, Tonya's father, Carl Lee Hailey, seeks the help of the laid-back attorney Jake Brigance. They discuss a troubling precedent from a similar case where four white youths were acquitted for the rape of a black girl, leaving Carl Lee fearful of the same fate for his daughter. With rising anxiety, he acquires an M16 rifle and storms the county courthouse, ultimately bringing down both rapists but causing the unintended injury of Deputy Looney (Chris Cooper), who then requires amputation of his leg. Following this act of vengeance, Carl Lee is arrested without a fight.
Despite the typical costs associated with a case of such magnitude, Brigance agrees to defend Carl Lee for a significantly reduced fee, planning to enter a plea of not guilty due to temporary insanity. The aftermath of the rape and the subsequent revenge killing capture national headlines, sparking the attention of the Ku Klux Klan, who begin organizing in the area. The brother of one of the rapists, Freddie Lee Cobb (Kiefer Sutherland), threatens Brigance and his family, further complicating the tense atmosphere.
As the district attorney, Rufus Buckley, pursues capital punishment and Judge Omar Noose (Patrick McGoohan) denies a change of venue, Brigance seeks to bolster his defense team. He turns to his friend, Harry Rex Vonner (Oliver Platt), a sleazy divorce lawyer, and requests guidance from Lucien Wilbanks (Donald Sutherland), a once-revered civil rights lawyer now discredited for his past violent activism. During this tumultuous time, Brigance crosses paths with Ellen Roark, a passionate liberal law student affiliated with the ACLU. Although initially hesitant, Brigance ultimately enlists her assistance in the case.
The trial begins amidst public uproar and media frenzy, forcing Brigance's family to evacuate their home after an incident where the Klan burns a cross on their lawn. With tensions escalating, Brigance and the police apprehend a Klansman who possesses a homemade bomb, which Brigance heroically tosses into the air, causing it to detonate. In response to the growing violence, Brigance decides to send his wife and daughter away for their safety.
As the trial unfolds, a chaotic standoff ensues between Klan members and a largely black congregation of protesters, culminating in violence. Amidst the turmoil, Brigance develops an attraction to Roark, but they resist crossing any inappropriate boundaries. The situation intensifies when arsonists destroy Brigance's house, leaving him to confront his losses and the sacrifices he's made. Although most jurors lean towards a guilty verdict, the pressure mounts when Freddie Lee Cobb targets Brigance, injuring a National Guardsman in the process.
In a harrowing twist, Roark is abducted by Klansmen, who assault her and leave her for dead until she is saved by an informant. With the case unraveling, Brigance visits Carl Lee in jail, suggesting a lesser plea, only to be met with fierce rejection. Carl Lee makes it clear that Brigance's race and upbringing impede his understanding of true justice in a racially biased trial.
As closing arguments commence, the courtroom is packed with onlookers. Brigance captivates the jury with a poignant plea, asking them to envision the victim as white while recounting the traumatic events surrounding Tonya’s attack. This powerful imagery forces the jury to confront their own biases, challenging their notions of justice. After deliberation, an African-American child bursts onto the courthouse steps exclaiming, "he's innocent!" This declaration ignites celebrations among supporters, but fury erupts from the KKK.
The movie concludes with Sheriff Ozzie Walls (Charles S. Dutton) arresting Freddie Lee and his fellow culprits. In a poignant moment of reconciliation, Brigance brings his family to a cookout at Carl Lee's home, remarking, "just thought our kids could play together," to which Carl Lee responds with a surprised yet warm smile, symbolizing a glimmer of hope for unity.
