Star Trek: Voyager
State of Flux
S1 E11:
When replicator technology turns up on a Kazon-Nistrim ship, Janeway suspects a collaborator. The Maquis are suspect, but who'd have thought Chakotay's old cell contained a Cardassian spy disguised as a Bajoran -- and his onetime lover?
Starring
Martha Hackett, Josh Clark, Anthony De Longis