The episode opens by revealing that Benjamin Sisko and his crew have been rescued from the uncharted planet in Dominion space which they were marooned on in the previous episode; they are dropped off at Starbase 375 by General Martok's ship, the Rotarran, which still includes Worf as first officer. The Rotarran then picks up some new recruits, including Alexander, Worf's estranged son, who has joined the military without his father's knowledge.
Worf and Alexander argue about Alexander's motivation for joining the military, and Worf tells his son that he does not have the heart of a warrior; after great difficulty, Worf had accepted this, and he is now confused by seeing Alexander's determination to fight. Later, another member of the crew taunts Alexander about not being a true Klingon, as he was raised by humans, and a fight breaks out. Worf breaks up the combat, afraid that his son will be injured or killed, a choice which General Martok is highly critical of. Alexander humiliates himself further on the command deck when he mistakes a simulation program for an attack on the ship.
Worf attempts to train his son in personal combat, but the training session quickly breaks down into an argument between father and son. Alexander asks if his father will send him away, as he did the last time that they were together, and says that Worf will be glad when he is dead. In an attempt to quash the tension rising between Worf and Alexander, Martok reassignes Alexander to a transport ship, which provokes another confrontation. This is interrupted by an attack on the ship by Jem'Hadar fighters.
Alexander manages to distinguish himself in the ensuing battle by stopping a plasma leak, though he does somehow also get himself locked in a room and needs to be rescued. Worf gains a new respect for his son, as well as an understanding that as an adult he must choose his own path, and asks if they may start over, saying that he will try to learn to be a better father. The episode ends with Alexander joining the House of Martok, the same House of which Worf is a member.
Meanwhile, on Deep Space Nine, Kira Nerys and Odo are attempting to get their new resistance movement off the ground. Gul Dukat brings his daughter Ziyal on board, and it quickly becomes clear that he is intent on using Kira's affection for Ziyal to bring her closer to him. When Ziyal's art is accepted into a prestigious exhibition, Dukat invites Kira to a party to celebrate, sending her a beautiful dress as a gift. Kira is briefly tempted by Dukat's offer, having had conflicted feelings about him for some time, but finds that she cannot face herself in the dress and angrily returns it to him.