1942. The State of Finland has formed an alliance with Nazi Germany. An elderly man single-handedly tries to stop a secret attempt by the Finnish State Police to hand over Jewish refugees directly to the Gestapo.

During the 1972 Munich Olympics, an American sports broadcasting crew finds itself thrust into covering the hostage crisis involving Israeli athletes.

September 5 unveils the decisive moment that forever changed media coverage and continues to impact live news today. Set during the 1972 Munich Summer Olympics, the film follows an American Sports broadcasting team that quickly adapted from sports reporting to live coverage of the Israeli athletes taken hostage. Through this lens, September 5provides a powerful new perspective on the live broadcast seen globally by an estimated one billion people at the time. At the heart of the story is Geoff, a young and ambitious producer striving to prove himself to his boss, the legendary TV executive Roone Arledge. Together with Marianne, a German interpreter, Geoff unexpectedly takes the helm of the live coverage. As narratives shift, time ticks away, and conflicting rumors spread, with the hostages' lives hanging in the balance, Geoff grapples with tough decisions while confronting his own moral compass. How do you cover a situation like this if what the perpetrators want is the spotlight you give?