Episode 82 of "Andromeda"
s04e16 Lost in a Space that Isn't There
Title: Lost in a Space that Isn't There
Original Air Date: 04/05/2004 on Syndication
Director: Peter DeLuise
Plot Outline:
After being repeatedly attacked by bounty hunters after several evasive slipstream jumps, Dylan determines that there must be a mole on board. After analyzing data recordings, he discovers that Beka has been infected by The Abyss and has unknowingly been giving away Andromeda's position. Dylan and the crew have to come up with a way to rid Beka of The Abyss -- without killing her.