It's 1935 and Marshall, Texas is still deep in the throes of racism and segregation. For black students and professors, however, the one bastion is Wiley College, a black institution overseen by Dr. James Farmer, Sr. (FOREST WHITAKER), whose own son, 14-year-old James Farmer, Jr. (DENZEL WHITAKER), is a student there.
He wants to be on the debate team that's run by Melvin B. Tolson (DENZEL WASHINGTON), a professor who's passionate about the team as well as his covert attempts to union the local sharecroppers. Those actions don't set well with Sheriff Dozier (JOHN HEARD) or the other white folk in town who try to thwart such efforts.
Nevertheless, Tolson sets out to motivate his students, choosing James Jr. and transfer student Samantha Booke (JURNEE SMOLLETT) to be the alternates on the team led by Hamilton Burgess (JERMAINE WILLIAMS) and Henry Lowe (NATE PARKER). The latter shows promise but needs polishing, and Tolson thinks he can provide that.
Preparing to debate other black colleges, a white one, and even Harvard, the team tries to refine their skills, all while dealing with living and going to school in the Jim Crow south.