Derek returns to the shop where he apprenticed as a teenager, and to a 1979 Chevrolet K5 Blazer that's been sitting for over 20 years. He teams up with his brother Sean to reassemble this parts truck into a full-on trail machine to tackle the Black Hills of South Dakota. Along the way, they learn from Derek's old mentor why this truck sat forgotten for so many years.

In the season finale, Derek travels to the last standing AMC dealership, Collier Motors in Pikeville, North Carolina. With more than 100 cars sitting derelict, Derek finds an AMC Rebel SST convertible that needs reviving. Parked for over 40 years, he'll try to get it running again and give it back to its original owner, who hasn't seen it on the road since he was nine years old.