This four-part documentary series, the first half of which arrives just before she returns to the Olympic stage in Paris, has more twists than even her most intricate routines.
It has been almost four years since Biles shocked the sporting world by withdrawing from the 2020 Olympics in Tokyo, partway through the competition.
She had been the face of the games, expected to break records, take multiple golds and cement her status as the greatest of all time. But Tokyo, which took place amid the restrictions and isolation of the Covid pandemic, did not go to plan.
The film-makers have been given extraordinary access to the gymnast, her family and her home life. We meet everyone from her husband, the NFL player Jonathan Owens, to her mother, Nellie.
We see her family gathered in front of the TV to watch her at the 2020 Olympics and see the moment that they realise things are falling apart. In the immediate aftermath of Tokyo, Biles films herself talking about shame and confusion.
She admits that she “wanted to quit, like, 500,000 times”. She was not sure that she would ever be back.