Stargate Atlantis (2004)

S4E10 This Mortal Coil (1)

In the episode "This Mortal Coil (1)," a strange drone crashes in Atlantis, suggesting that the Replicators might have discovered the city. However, when Elizabeth Weir makes an unexpected appearance, the team begins to understand that the drone is merely a piece of a larger enigma. As they delve deeper into the situation, the implications of this discovery unfold, hinting at more complex challenges ahead for the team.