As part of his "duties" as Voyager's morale officer, Neelix begins transmitting daily news briefings to the crew. When he hears a rumor that someone is leaving the ship to join a Talaxian convoy, he passes the news along to Janeway and Tuvok. Unsurprised, the pair admit to Neelix that Tom Paris has requested the transfer. To the dismay of his friends, Paris leaves the ship.
While Janeway ponders Paris' replacement, Neelix busies himself by covering a minor accident in Engineering that leaves three crewmembers, including Jonas, nursing minor wounds. A short time later, the Talaxian vessel notifies Janeway that it has been attacked by the Kazon-Nistrim, who have taken Paris hostage.
Seska welcomes Paris aboard the Kazon vessel and tries convincing him to join forces with the Nistrim sect. Back on Voyager, Neelix wonders how the Kazon knew that Paris was aboard the Talaxian ship. Following his new career as an investigative journalist, Neelix pokes around engineering, where he finds suspicious gaps in the subspace communications logs. Fearful of exposure, Jonas prepares to kill the Talaxian with a plasma torch, but Neelix leaves before he can do it.
Neelix tells Tuvok his suspicions that a crewmember has been making covert transmissions to the Kazon. Exploring further, Neelix finds evidence that Paris is the traitor, and transmits his findings on his daily briefing. Janeway confides in Neelix that Paris' recent departure was a ruse to flush out a suspected spy on board. She asks the Talaxian for assistance in exposing the traitor.
On the Kazon ship, Paris finds evidence that proves Jonas is the turncoat, but he is discovered by Seska. He manages to escape in a stolen Kazon shuttlecraft. Back on Voyager, Neelix realizes that Jonas is the guilty party and when the two men come to blows in Engineering, Jonas plunges to his death. The Kazon retreat and Paris returns to the ship a hero.