Come Back Buddy follows a touring band built around Mike Randall, Janine Randall, and Don Rinehart, who play rockabilly and oldies rock 'n' roll for crowds across the country while keeping the sound of early rock alive on stage. The film, directed by Josh Badham and Brian Rider, mixes concert footage from small clubs and packed houses with tour-van conversations about booking gigs, splitting motel rooms, and the grind of one-night stands. Its centerpiece is a detour to Hollywood, where the band attends the ceremony giving Buddy Holly his posthumous star on the Walk of Fame, and the cameras catch Phil Everly, Gary Busey, Peter Asher, and Holly's widow Maria Elena talking about what his music meant and still means. Those conversations give the band's own retro repertoire a direct lineage rather than just a nostalgic gloss. Interviews with the band fill in how they picked their sound from classic rock, country, and blues, and how they built an audience gig by gig rather than through a label.