Part 1 of 3. "Bye Bye Barry," the Amazon Prime documentary about why legendary Detroit Lions running back Barry Sanders walked away from football, premieres on November 20. In it, Sanders finally reveals the reason he abruptly and mysteriously left the game, at the height of his skill and within a season of becoming the NFL's all-time rushing yards leader. David and Marshall try to predict what Barry's explanation is going to be, by reading between the lines of quotes from Barry's Pro Football Hall of Fame induction ceremony (02:05), and from his decision to turn pro after his junior year at Oklahoma State (32:43). Theme music: Mr. Jukes and Barney Artist, "Blowin Steam (Open Up Your Mind)"