Nearly two decades when it concluded, "Star Trek: Deep Space Nine" will be back on the small screen with "What We Left Behind: Looking Back at Star Trek Deep Space Nine" documentary. Some of the show's original stars and staff are set to be back for a set of interview recalling the time when "DS9" is still on air and discussing the what-ifs if it had the chance to have another season.

"Star Trek: Deep Space Nine" is dubbed to be the black sheep of the "Star Trek" universe, according to Gizmodo. The showrunner Ira Steven Behr is now preparing everything to make the documentary possible by launching a fundraising campaign.

"What We Left Behind: Looking Back at Star Trek Deep Space Nine" will be about the "changing legacy" of "DS9." Even though the science fiction television series is considered as a troublesome franchise of the "Star Trek" universe, it had built a massive fan base that proved that it had something to give.

In fact, "Star Trek: Deep Space Nine" writer's room members were recently reunited to reveal the story of what it could have become and other details of the canceled eighth season. Fortunately, the magical first episode of the supposed-to-be new installment will be unveiled to the public through the "What We Left Behind: Looking Back at Star Trek Deep Space Nine" documentary.

The producer of the upcoming "What We Left Behind: Looking Back at Star Trek Deep Space Nine" documentary Behr will share how it feels creating a new "Star Trek: Deep Space Nine" story after almost 20 years. Also, the 63-year-old screenwriter telling "DS9" to the new generation and how he predicted that the classic television series will be more known after it was canceled.

To recall, "Star Trek: Deep Space Nine" debuted in 1993 and after seven seasons, it ended in 1999. It broke the norm of being jus another "Star Trek" franchise by featuring a number of vague characters, serialized storytelling with a lengthy Dominion War and bearing a dark theme, Hollywood Reporter reported.

"Star Trek: Deep Space Nine" eventually ended when Captain Sisko (Avery Brooks) left the galaxy to pursue his destiny as a prophet. Unfortunately, no movie adaptation has been made to continue where he left off.