Ralph Holguin is living the American dream. A Mexican immigrant and high school dropout, Holguin took a humble car detailing business he started at 19 and built it into a multimillion dollar design and fabrication house for discerning clients and cashed-up celebrities. `RMD Garage' presents a window into the process of the automotive builds at Ralph's Southern California shop, where his team of designers, fabricators and upholsterers create one-of-a-kind masterpieces, including a 1958 Chevy Apache Dream Catcher, a 1962 Bel Air Bubbletop, a 1957 Lincoln Continental, and a 1972 Triumph Bonneville.