The crew discover a wrecked Borg scout ship with a single survivor: a young Borg drone. Dr. Beverly Crusher (Gates McFadden) insists on treating the surviving Borg despite the concerns of Captain Jean-Luc Picard (Patrick Stewart). On Picard's orders, the drone is confined and monitored by security forces at all times and is prevented from contacting the Borg Collective. Chief Engineer Geordi La Forge (LeVar Burton) and Lt. Commander Data (Brent Spiner) assist Crusher in bringing the Borg back to health. As they come to understand the workings of the Borg, La Forge and Data devise an idea of using the Borg drone as a weapon of mass destruction. By implanting an unsolvable geometric formula into his mind and returning him to the Collective, the formula should rapidly spread (similar to a computer virus) and disable the Borg. Crusher is aghast at this suggestion, considering it equivalent to genocide, while Picard and the other senior crew deliberate on the ethics of this plan.