On February 6, 2019, Britell confirmed he is composing the score for Barry Jenkins' next project, "The Underground Railroad", an original series on Amazon based on Colson Whitehead's Pulitzer Prize winning novel of the same name. The show premiered on Amazon Video on May 14, 2021 to critical acclaim for both Jenkins and Britell. For his score, Britell received a Primetime Emmy Award nomination for Outstanding Music Composition For A Limited Or Anthology Series, Movie Or Special (Original Dramatic Score) at the 73rd Primetime Emmy Awards.