Star Trek: Deep Space Nine

Season 5, Episode 6

Episode Title: Trials and Tribble-ations

Air Date: 1996-11-04

Overview:

Stardate: 4523.7. In this celebration of the 30th anniversary of The Original Series, the disgraced Klingon spy Darvin travels back in time to undo his century-old defeat by James Kirk. The DS9 crew must track him down and stop him, while blending in with the crew of the original Enterprise NCC-1701.