In the middle of the 20th century, a small piece of plastic revolutionizes the world of commerce as Diners' Club, Bank of America, and American Express race to change how people pay for everything kicking off the $6 trillion dollar a year credit card industry.

In the 1950s, rival electronics companies aim to make music portable for the first time ever. What follows is a decades-long rivalry that prompts the creation of iconic products like the Pocket Radio, Cassette Tape, Walkman and the CD, alongside the rise of two of the biggest companies in the world.