The episode begins when SG-1 discovers a perfectly preserved, dormant young woman on a ravaged, lifeless world. They bring her back to Stargate Command (SGC), only to realize she isn't human—she’s a highly advanced android named (played with haunting, childlike volatility by Danielle Nicolet).
Daniel sees a frightened, emotionally stunted child who never intended to cause harm. He believes he can reach her through logic and empathy, potentially ending the Replicator threat forever by convincing the "mother" to stop her children. The Heartbreaking Climax 5x19_Stargate_SG-1
The tension peaks in the SGC's gateroom. As Replicators swarm the base and threaten to escape through the Stargate, Daniel almost succeeds in getting Reese to stand down. However, fearing for his team and the world, O'Neill makes a split-second decision and shoots Reese, instantly deactivating her—and the Replicators. "Stargate SG-1" Menace (TV Episode 2002) - Full cast & crew The episode begins when SG-1 discovers a perfectly