and sonny to go to the silicon valley airport and go off to some meeting, got to go sell this thing, go make a deal. >> without disclosing their romantic relationship to investors, elizabeth and sonny flew off together to corporate presentations, touting the potential of the edison prototypes. one company, walgreens, loved the pitch. in this 2010 powerpoint, theranos showcased an early version of edison. a portable blood testing machine that could be deployed the in pharmacies all over the world. theranos boasted the device would eliminate the need for a lab, by doing up to 200 tests a minute. once walgreens signed a contract, theranos struggled to make its true, constantly changing the machine's color,