CEO and entrepreneur Marcus Lemonis goes behind the jewelry counter to crack the code on the diamond business of 47th Street in New York City's notoriously secretive Diamond District. With unprecedented access to elite diamond dealers, master craftsmen and industry disruptors, Marcus explores the inner workings of this $24-billion block and tries to discover what it takes to get a good deal on a diamond.

CEO and entrepreneur Marcus Lemonis travels to Music Row, an unassuming Nashville street that is at the heart of America's multibillion-dollar country music industry. With exclusive access to country stars and power players like Brett Young and Troy Tomlinson, Marcus uncovers the surprising truth about how money is really made in music and meets the ingenious local entrepreneurs who are making fortunes off the industry, without ever playing a note.

CEO and entrepreneur Marcus Lemonis gets the inside scoop on Calle Ocho, Little Havana the booming capital of Cuban-American culture in Miami. Marcus scores a sneak peek at a local mogul's multi-million-dollar hotel/entertainment complex that he believes can rival anything the "Magic City" has to offer. He spends time with international music superstars Pitbull and Emilio Estefan to discover how their experiences on Calle Ocho shaped their success. And he talks business with entrepreneurs, both old and new, whose businesses are fueling Little Havana's economic explosion.

CEO and entrepreneur Marcus Lemonis is granted exclusive access to San Diego's restricted military and industrial waterfront along Harbor Drive to learn about the city's emerging "blue economy" - an under-the-radar economic sector worth 1.5 trillion dollars worldwide. To discover if this ocean-based economy could transform San Diego from a sleeping giant into an economic powerhouse, Marcus takes a deep dive into the city's fishing heritage, gets an unprecedented look at how the Navy contributes billions to the local economy and explores Harbor Drive's booming blue tech industry.

CEO and entrepreneur Marcus Lemonis pulls back the curtain on Denver's South Broadway, better known as the Green Mile, home of the original "Great Green Experiment" in legal marijuana. From a millionaire grower dubbed "the Steve Jobs of Weed" to NFL legend Terrell "TD" Davis, Marcus meets the entrepreneurs, innovators and pioneers who are pushing this multi-billion-dollar market forward and he explores whether Denver's marijuana model could be an economic blueprint for cities across America and if weed really is "green gold"?