Featuring a 12-person cast of actor-singer-musicians, Good Vibrations chronicles the story of the beloved titular record-store/label—which served as a musical haven and inspiration during the sectarian strife of 1970s Belfast—through the songs of punk rock legends like The Undertones, the Outcasts, and Stiff Little Fingers (including, respectively, “Teenage Kicks,” “Just Another Teenage Rebel,” and “Alternative Ulster”). It follows Terri Hooley (Glen Wallace), the real-life radical, rebel, and music-lover, who, when the Troubles shut down his city and his friends take sides, opens a record shop. He becomes the unlikely leader of a motley band of kids who join his mission to create a new community, an alternative Ulster, and bring his hometown back to life.