However, she becomes intrigued by John Crichton and his wormhole knowledge, believing it to be a potential bargaining chip in her dealings with the Scarrans, and sets out to capture Moya. She is successful in tracking the crew down, and early in season 4, drugs and rapes Crichton: the stated purpose is to gain access to his wormhole knowledge, using allegedly more pleasurable methods than torture; the plan fails, though Crichton spends most of Season Four of Farscape traumatized by his treatment at Grayza's hands. Humiliated, Grayza directs Braca to keep searching for Moya - word spreads quickly to bounty-hunters of the price she puts on Crichton's head - but this also fails. Finally, when her bid for peace is lost, Grayza orders her Command Carrier to engage the Scarrans in conflict, only to be stopped by her subordinate Captain Meeklo Braca, who has secretly been allied with Scorpius while pretending to be loyal to Grayza. He assumes command of the Command Carrier.