Cast your memory back to 1979. Tensions across the US are high, on multiple levels. Disco dominates the music scene, and, oh boy, rock fans are mad about it. Things come to a head at Comiskey Park, where White Sox owner Bill Veeck and a young anti-disco DJ named Steve Dahl decide to promote a doubleheader baseball event with a particular theme -- bring a disco record, and you get to watch it get blown up between games. Spoiler alert: things went wrong, almost immediately.