In 1962, a record producer mainly known for his work with comedy acts signed an as-yet unknown band from Liverpool called the Beatles; the rest, as they say, is musical and cultural history. For eight sometimes tumultuous years, George Martin guided the Fab Four, changing with each new evolution of their style. After their break-up, he continued to produce, but increasingly spent time on building the most advanced recording studios possible. With testimony by Paul McCartney, Ringo Starr, Jeff Beck and many others, the unique role of Martin in creating some of the finest pop music powerfully emerges as we come to understand his process for enabling artists to transform their musical dreams into hit records.