In this episode, the Federation starship Voyager, alone in the Delta Quadrant, is lured into a trap which leads to the ship being commandeered by the hostile Kazon who forcibly remove the ship's crew to an inhospitable planet.

Ensign Lon Suder, having been confined to his quarters for life as punishment for his murder of Crewman Darwin, has attempted to make amends for this by making several agricultural-advancements. Suder is happy that his work might benefit the crew as he can improve the garden which produces most of the rations for the crew. His homicidal tendencies seem to be well under control by the use of Vulcan mental disciplines learned from Tuvok. Seska calls Voyager stating that Commander Chakotay must rescue her and her baby, now that she gave birth, since Culluh saw that the child was not his. Captain Janeway and Chakotay argue on whether or not to save his son, whether it is a trap or a real plea for help. In the ready-room, everyone thinks up ideas to fight the Kazon in the event of a trap.

An apparent defector of the Kazon is soon found on a stranded ship and taken on board to Sickbay, and explains his predicament, although Chakotay remains suspicious - especially when he mentions Seska's death. As Voyager travels further into Kazon space, facing heavier attacks that seem focused at the same general area of the ship, the man commits suicide in a grisly and violent explosion, which severely damages Suder's quarters and disables several of Voyager's systems. As Voyager is overwhelmed by the Kazon, Lt. Paris takes a shuttle to find a Talaxian colony for aid. Voyager is boarded and taken over by Kazon forces. Captain Janeway attempts to activate the ship's self-destruct sequence to prevent the Kazon from taking the ship, but important systems ("Secondary Command Controls") had been damaged from earlier Kazon skirmishes, disabling this ability, revealing the true strategy of the Kazon.

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