What We Left Behind: Looking Back at Star Trek: Deep Space Nine (2018) is a Documentary film that follows a documentary exploring the legacy of Star Trek: Deep Space Nine, the reasons it went from the black sheep of Star Trek to a beloved mainstay of the franchise, and a brainstorm with the original writers on what a theoretical eighth season of the show could look like. Currently, you can watch What We Left Behind: Looking Back at Star Trek: Deep Space Nine on Amazon Prime Video, Amazon Prime Video with Ads, Shout! Factory Amazon Channel, Amazon Video. Streaming availability may vary by country and platform over time. It has a user rating of 7.0 out of 10 from 52 votes. Fans of documentary movies may also want to explore similar titles below.