The crew races to finish a one-owner 1970 Super Bee that belongs to a decorated, retired Marine; as Mark and Justin forge ahead, a snafu on Will's side of the shop may cause a total mission failure.

When a local car dealer wants to bring back the car of his youth, he enlists Mark to create an identical twin to his 1969 Road Runner; this car will have one or two add-ons, including a sport hood treatment.