Graham spends the day in Dallas with quarterback-turned-broadcaster Tony Romo, who gives his first interview since signing the contract that made him the highest-paid TV analyst ever. The former Cowboy opens up about his immigrant grandparents' pursuit of the American dream, his childhood, and how having his own family has impacted him. Romo also addresses his new contract, and receives a gift from New Orleans Saints head coach Sean Payton. Then, Graham and Tony jump into a GMC Acadia and hit a local course for a quick game of golf.

We're celebrating 10 years of In Depth with a look back on a decade of world travel and incredible characters that have made the show what it is today. From unforgettable interviews with O.J. Simpson, Terrell Owens and Richard Branson, to some of the lighter moments, Graham reflects on how it all started. Plus, hear behind-the-scenes stories from Graham's friends and family.

Graham spends two days in Belgrade, Serbia, with No. 1-ranked tennis player Novak Djokovic. The 17-time Grand Slam champion eyes the all-time record, discusses how war has shaped him and reveals how his marriage proposal almost literally went up in flames. Djokovic shows Graham around the city with stops at his tennis center, childhood playground and local gym. Plus, Graham spends time with Djokovic's wife, mother, friends and family to learn what it is like to support one of the greatest athletes of all time.