Graham travels to North Carolina to the home of Dale Earnhardt Jr. for the NASCAR icon's first extensive interview about the numerous concussions that forced his early retirement. Dale Jr. candidly shares why he kept concussion symptoms a secret for so long and the intense rehab endured alongside his wife Amy to return to the track for a final season. Plus, Kelley Earnhardt Miller discusses her and Dale's upbringing with a father who prioritized his career over family and Mike Davis shows Graham around Dale Jr.'s sprawling, 200-acre property.

Graham spends two days with Rev. Jesse Jackson, from his headquarters in Chicago to the Lorraine Motel in Memphis. The college athlete turned civil rights activist discusses his tough upbringing, his critics and the assassination of his colleague, Dr. Martin Luther King Jr. Plus, Jackson reflects on the enduring connection between sports and protest and offers an exclusive, first-hand look at his fight against Parkinson's disease.

Graham travels to Brackley, England to sit down with five-time Formula 1 champ, Lewis Hamilton. The global icon and one of TIME's most influential people talks about breaking barriers as the first black driver in the F1, the controversial decisions to leave both Team McLaren and his father as manager and a lost friendship with former teammate and rival, Nico Rosberg. Plus, Lewis and Graham drive through the English countryside to discuss dating, dodging the paparazzi and a cold shoulder from Oprah Winfrey.