Star Trek: Deep Space Nine: Season 2, Episode 13

2 - 13: Armageddon Game

Chief O'Brien and Dr. Bashir help the T'Lani and the Kelleruns eliminate their stockpiles of deadly biological weapons used in their centuries-long war. However, when both governments decide to make sure no technical knowledge of the weapons remains, O'Brien and Bashir must put their differences aside in the name of survival.