Two days before winter break, Nate, Ida, and Rosa are assigned to write a research paper that chronicles how African Americans have celebrated Christmas throughout history. Granddad is immediately interested and summons the magical Soul Train to transport them all into the past so they can witness, firsthand, how Christmas was celebrated.

The holiday spectacle brings to life history introducing them to African drumming, Harlem Renaissance jazz, civil rights beat, disco party jams, and hip-hop battle sounds.