Stardate: 54129.4 - Rebi and Azan reunite with their home world and leave the crew of Voyager. Mezoti accepts the invitation to stay with Rebi and Azan and live with them. Seven of Nine is placed in a life-threatening situation when her Borg implants begin to malfunction. She can only survive with replacement parts from a living drone. Janeway, Tuvok, and Paris search a destroyed Borg ship for parts but find only drones deactivated for too long. With Icheb now the last of the remaining Borg children on Voyager, he offers his implants through a risky procedure that may cost both of their lives. Seven rejects his offer to protect him, but Icheb secretly performs the dangerous operation on himself to save the ailing Seven.

After members of the crew are discovered unconscious, Tuvok leads the search for the mysterious attacker who preys on those involved in the Maquis resistance movement.