Posing as a racist extremist, Stallworth contacts the group and soon finds himself invited into its inner circle. He even cultivates a relationship with the Klan’s Grand Wizard, David Duke (Topher Grace), who praises Ron’s commitment to the advancement of White America. With the undercover investigation growing ever more complex, Stallworth’s colleague, Flip Zimmerman (Adam Driver), poses as Ron in face-to-face meetings with members of hate group, gaining insider’s knowledge of a deadly plot. Together, Stallworth and Zimmerman team up to take down the organization whose real aim is to sanitize its violent rhetoric to appeal to the mainstream.