In April 1941, Thurgood Marshall, played by Chadwick Boseman, serves as an impassioned attorney for the NAACP, embarking on a mission to defend individuals of color who face unjust accusations due to rampant racial bias. Upon returning to his office in New York City, he is swiftly dispatched to Bridgeport, Connecticut. Here, he is tasked with the defense of Joseph Spell, portrayed by Sterling K. Brown, a chauffeur accused of raping his white employer, Eleanor Strubing, played by Kate Hudson. This sensational case has captured the attention of the media, amplifying the stakes involved.
In Bridgeport, Marshall encounters Sam Friedman, played by Josh Gad, who is reluctantly assigned by his brother to assist in securing Marshall's admission to the local bar. The situation is complicated when Judge Foster, played by James Cromwell, a friend of the prosecutor Lorin Willis portrayed by Dan Stevens, grudgingly allows Marshall to represent Spell but with a strict limitation—Marshall cannot speak during the trial. As a result, Friedman must take the lead in defending Spell, relying heavily on Marshall's guidance through notes and advice. One key piece of Marshall's counsel is allowing a strong-willed Southern white woman onto the jury, whose assertiveness might be beneficial for their case.
Throughout the trial, Spell maintains his innocence, claiming he never engaged in any sexual activity with Strubing. He leads Marshall and Friedman to a patrolman who encountered him while he was driving Strubing's vehicle the night in question. Together, they investigate the inconsistencies in Strubing's allegations that Spell had tied her up in the back seat of her car after committing rape and attempted to dispose of her body at a bridge. The defense team is perplexed by why Spell purportedly would the throw her into the calm waters rather than the rapids.
Initially, Spell considers a plea deal presented by Willis, yet Marshall persuades him to refuse. During the trial, however, a doctor’s testimony reveals crucial evidence—skin fragments found under Strubing's fingernails and contusions on her body. In a dramatic turn, Strubing herself asserts in court that she was bound in the backseat when the police officer apprehended Spell. This startling revelation compels Marshall and Friedman to press Spell for the truth, which ultimately leads him to admit that he lied about their encounter.
Spell's testimony unveils a tragic backstory; he explains that Strubing’s husband was the source of her bruises caused by ongoing abuse. On that fateful night, when Spell sought financial help from Strubing, she was distressed and consented to have sex with him. However, upon realizing the implications of her actions, Strubing panicked, leading to a series of events where she attempted to end her life after falsely accusing Spell of rape. In this tense courtroom drama, Spell reveals the harrowing truth: black men in Louisiana often face brutal consequences for relationships with white women, which compounds his fear of being accused.
Despite Judge Foster's visible discomfort and the shocked reactions of the jury members, he permits Spell's testimony to remain, adding a new layer of tension as they await the outcome. Before the verdict is announced, Marshall must depart for a case in Mississippi, leaving Friedman to navigate the final stages of the trial alone. Embracing newfound confidence, Spell dismisses an alternative plea bargain offered by Willis.
The following day, Marshall and Friedman finalize the closing arguments, which Friedman must subsequently present solo. Encouragingly, the jury is led by a Southern white woman, who ultimately delivers a shocking "not guilty" verdict. The courtroom erupts in applause, propelling Spell into a state of happiness and relief. Over the phone, Friedman shares the jubilant news with Marshall, who is preparing for his next legal battle.
As the closing credits roll, we learn that Friedman continued his vital work in numerous civil rights cases, and Marshall's legacy grows as he becomes a pivotal figure in the American Civil Rights Movement, later achieving the distinction of being the first African American Justice on the Supreme Court of the United States.
