The following events occurred on September 5.
- Clara Clayton visits Doc Brown's stable and asks him to fix her telescope.
- The Hill Valley Festival is held.
- In the original timeline, Doc Brown is shot in the back by Buford Tannen and dies on the 7th.
- In the revised timeline, Marty McFly saves Doc from being shot at the Festival by throwing a Frisbee at Buford.
- "Mac the Black" first aired.
- Back to the Future Part III
- Back to the Future: The Card Game (Mentioned only)
- Back to the Future: The Game
- Back to the Future: The Game - Episode 3: Citizen Brown (Mentioned on a self tour box.)