For Lizzy Caplan, joining Netflix's "Zero Day" was an easy decision to make, citing Robert De Niro's involvement, as well as the "solid" credentials of co-creators Eric Newman, Noah Oppenheim and Michael Schmidt.

Let's break down the explosive series finale of Netflix's "Zero Day," a cautionary tale about autocracy, misinformation and cyberterrorism.

Sure, some unknown party has managed to seize control of every connected device in the United States, turning all of them off just long enough to cost thousands of lives, and leaving behind an ominous push alert that “This Will Happen Again.