Backside details the daily life and skills of the under-recognized migrant workers behind the Kentucky Derby, the most famous horse race in the world. This observational film follows a racing season from beginning to end, revealing a web of class, labor, and wealth in the American South. With its intimate cinematography and access, Backside is a feature documentary that disrupts stereotypes of "low-skilled" immigrant labor while elevating the daily lives of grooms to a sensory experience.