The Adversary
Series: Star Trek: Deep Space Nine
Airdate: June 25, 1995 | Year Set: 2371
Season 3, Episode 26
Summary
When a destabilizing coup takes places on the Tzenkethi homeworld, a newly promoted Captain Sisko is ordered to take the Defiant on a border patrol to evaluate the situation. However, soon after departing DS9 the Defiant develops a series of malfunctions, leading Sisko to consider that they may have a saboteur onboard.