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

Zero Day had everyone talking when it was first announced, with many noting that Robert De Niro doesn't do many TV shows. I was intrigued to see him playing a troubled former President, as Netflix has a record for being pretty good with political thrillers.

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.