State of Flux

The episode is essentially a well plotted detective story. The Voyager encounters a ship belonging to the Kazon in distress and boards it in order to provide assistance. Upon further investigation, it is found that the ship was carrying some Federation technology. Now the crew have to find the traitor in their midst that secretly provided the technology to the Kazon, who are essentially hostile to the Voyager.

The story is well plotted, with a couple of twists, as a good detective story should always have. There's multiple suspects, a trap and a confrontation - all good stuff. I always enjoy a good mystery, and one that is set on Voyager, is a pretty good combo.