Farscape/Recap/S04/E17 A Constellation of Doubt

Season 4, Episode 17:

A Constellation of Doubt
As the rest of Moya's crew searches (in vain) for any mention of Katratzi on any information or communication network, Crichton retreats into his quarters, where he's using a TV brought from Earth to watch a show that Pilot intercepted via the wormhole. In it, a reporter casts doubt and suspicion on the visit to Earth by Moya's crew, and line up experts on science, religion and war to provide commentary on what the crew have to say about humanity. D'Argo, Chiana and even Sikozu get concerned with Crichton's new obsession, but he's convinced that he's heard the name "Katratzi" and that the clue to figuring out where can be found somewhere in the TV programme.

Finally it clicks when he sees some video footage of Sikozu examining a metal tray and holding it up so that it covers half her face. Crichton remembers why "Katratzi" is familiar: when he visited the unrealized reality where everyone seemed to be someone else (i.e. D'Argo as Jool, Aeryn as Chiana), he heard Sikozu-as-Stark say the word "Katrazi" while crossing someone over. Realising what he needs to do, Crichton asks D'Argo and Pilot if they can take Moya back to the wormhole leading to Earth, then goes to see Scorpius.

"Crichton: You set me up, not that I care. I don't care about much. War... death... and wormholes. I don't care about the things you care about. Peacekeepers rule the Scarrans, the Scarrans rule the Peacekeepers. Let them rule together, put your ass in a cage. I care about one thing. One. God have mercy on my soul... I think I'm going to need your help, Mr. Scarran half-breed, to get Aeryn back. Help me get her, and I will give you wormholes. I have an idea of how to find the Scarran base. Aeryn for wormholes. That's the deal."