Elizabeth Holmes, an optimistic and determined young woman, drops out of Stanford to found a promising new blood testing startup.

In need of money, Elizabeth brings her fledgling technology to the venture capitalists of Silicon Valley. In Switzerland, she is forced to make a difficult decision.

As Theranos rapidly expands, Elizabeth's technology struggles to keep pace and members of the board become increasingly wary of her secretive behavior. Sunny considers joining the company.

Walgreens is enticed by Elizabeth to seal the deal on a new partnership with Theranos. Ian tries to investigate what's going on behind closed doors.

Fresh out of college and newly employed by Theranos, Tyler Shultz and Erika Cheung discover shocking truths about Elizabeth and the company. Richard and Phyllis work with John Carreyrou to build a case against Elizabeth.

Under intense scrutiny from the Wall Street Journal, Elizabeth and Sunny double down on defense. Tyler and Erika face a difficult choice.

In the wake of the Wall Street Journal article, Elizabeth and Sunny face a reckoning.