First broadcast on November 4, 1996, “Trials and Tribble-ations” marked Star Trek’s 30th anniversary by taking the Deep Space Nine crew back to the era of Captain James T. Kirk. The episode placed Captain Benjamin Sisko and his colleagues inside the events of “The Trouble with Tribbles,” the well-known 1967 Original Series story featuring rapidly multiplying furry creatures.
The idea emerged after the DS9 writers considered several ways to revisit the franchise’s past. Ronald D. Moore initially proposed a story about a planet populated by Kirk and Spock impersonators. René Echevarria instead suggested weaving the DS9 characters into an existing Original Series episode. Moore nominated “The Trouble with Tribbles,” and the team built the story around that choice.
In the episode, an incident involving the Bajoran Orb of Time sends the USS Defiant into the past. Sisko later recounts the mission to two agents from Starfleet’s Department of Temporal Investigations. He, Dax, O’Brien and Bashir have to move through the Enterprise and the events surrounding the tribble infestation without changing history. Their mission also involves stopping Arne Darvin, a Klingon agent who had disguised himself as a human in the original episode and now seeks revenge on Kirk.
Charlie Brill returned as the older Darvin. The writers learned that Brill was still working and, during a lunch at a Beverly Hills pizza restaurant, happened to see him there while discussing the possibility of bringing him back.
Recreating the 1960s Star Trek setting required detailed work across the production. The cast wore period-appropriate costumes and hairstyles, while the crew rebuilt familiar sets using original plans and episode scans. Visual effects placed DS9 actors into footage from “The Trouble with Tribbles,” including scenes with Kirk and the Enterprise crew. The production also recreated the look of the original Klingons and used a half-scale Enterprise model based on the ship’s original filming miniature.
A central debate among the writers was whether Sisko and Kirk should meet. The final episode included a brief exchange on the Enterprise bridge, using a scene adapted from another Original Series episode, “Mirror, Mirror.”
“Trials and Tribble-ations” became the most-watched episode of Deep Space Nine’s fifth season and received nominations for three Emmy Awards and a Hugo Award. It is now regarded as one of the series’ standout episodes. Both it and “The Trouble with Tribbles” are available to stream on Paramount+ in the United States and United Kingdom.
Sources: Space.com.