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.

With the Walgreens deadline looming, Elizabeth and Sunny scramble to find solutions to their technological failures. Ian is drawn into Elizabeth’s lawsuit against Richard.