Star Trek: Deep Space Nine "Trials and Tribble-ations" (S5, EP. 6) Lot of (2) Tribbles W/COA - This lot is two Tribbles used during the production of the 6th episode in season five of the hit science-fiction television series Star Trek: Deep Space Nine. The episode is titled "Trials and Tribble-ations," and was written as a tribute to the original series of Star Trek in the 30th anniversary year of the show. In the episode, Captain Benjamin Sisko and the crew travel back in time to prevent the assassination of Captain Kirk by a Klingon spy using a booby-trapped tribble. The episode was praised for the nostalgia and level of detail seen on the screen, and was the most watched episode of the fifth season. It was nominated for three Primetime Emmy Awards. The lot will be accompanied by a certificate of authenticity.