1) The story follows Marion, a Black woman, as she takes her second driving test with a new examiner.
2) During the test, the examiner subjects Marion to racist verbal abuse and asks her inappropriate personal questions seemingly meant to undermine her intelligence and character.
3) At the end of the test, the examiner fails Marion not for any driving errors but as retaliation for Marion swearing at him in response to his racism, revealing his biased and unfair assessment of her skills.