How is it to be part of a successful football team? The documentary series “Inside Borussia Dortmund” should provide information. Footballers like Marco Reus, Jadon Sancho and Axel Witsel talk about their everyday lives. But it’s not just life on the pitch that’s being scrutinized. The spectators may also take a look inside the club and get to know football greats outside the grass. In addition, the audience learn a lot about the history of the traditional club, which was founded in 1909 and is an integral part of German history.