Star Trek: Deep Space Nine - Season 6 Episode 4 Behind the Lines At the edge of the Final Frontier, the Universe's greatest mystery is about to unfold.
Overview: Stardate: 51145.3. After forming an attack plan on the Dominion, Sisko relinquishes command of the Defiant to Dax after accepting a promotion. On DS9, the resistance faces discovery when Odo links with another changeling.