S1·E33 Checkmate

Lt Razak is called to a mission briefing to find it being given by Sky Marshall Sanchez himself. The Sky Marshall tells the assembled officers about the of the Bug Queen. He then assigns Alpha and Echo squads the mission of locating and destroying the Queen. One bit of seemingly good news is the return of Carl to the squad. But the Roughnecks are dismayed to find an apparent change in his personality. Carl guides the roughnecks to the queens lair but is captured by Bugs enroute losing his helmet in the process. The Roughnecks find the Queen but she is holding Carl as a shield and Rico is unable to pull the trigger on his friend. In the fire fight the Queen drops Carl and Rico returns his helmet. The squad give chase to the Queen but are unable to stop her escaping on a Transport Bug - enroute to Earth!!!!