DIRTY OLD CARS follows the owners and staff of three of the best detailing shops in the country: Unique Classic Cars in Mankato, Minnesota, Visual Perfection in Morganton, North Carolina and Reds Detail in Marietta, Georgia as they hunt down forgotten gems that are on the fast track to the trash compactor. The crews buy, clean, and flip the dirtiest and most disgusting cars. Along the way, the audience will witness amazing transformations, a jaw-dropping cleaning process.