Farscape: Season 1, Episode 18

1 - 18: A Bug's Life

A Peacekeeper ship approaches Moya, so Crichton and Aeryn pose as Peacekeeper officers on a secret mission while everyone else gets locked into cells to make the deception seem realistic. The Peacekeepers that come aboard, however have some strange and dangerous cargo aboard which wreaks havoc when accidentally released by Rygel and Chiana snooping through the Peacekeepers' possessions.