Farscape
Rhapsody in Blue (1x13)
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Moya responds to a distress call from another pregnant Leviathan. On arrival at a planet they are contacted by a delvian who informs them that the distress call was a deception. It was her way a getting Moya to come to them. The delvians have a hidden agenda though. They want to forcefully take Zhaan's knowledge and learn how she overcame her insanity.