[s1e20] The Siege: Part 2 May 2026

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The first season finale of Stargate Atlantis , " The Siege: Part 2 ", remains one of the most intense hours in the franchise's history. Just as the expedition prepares for their darkest hour —arming a self-destruct virus and preparing for a total evacuation—a literal light appears at the end of the tunnel: the Stargate activates with an incoming IDC from Earth. The Arrival of the Cavalry

"The Siege: Part 2" perfectly encapsulates the high stakes of Atlantis , leaving viewers wondering if the expedition's survival was even possible. [S1E20] The Siege: Part 2

When the Naquadah generator fails, Sheppard takes a Puddle Jumper on a manual kamikaze run to detonate a nuke inside a Hive ship.

The tide seemingly turns when Colonel Dillon Everett arrives with a company of Marines and heavy artillery originally intended for Earth's battlecruisers. This military reinforcement brings hope in the form of: Let me know in the comments

The "cavalry" isn't without its costs. Colonel Everett immediately clashes with Dr. Elizabeth Weir and John Sheppard, holding a personal grudge against Sheppard for the death of Colonel Marshall Sumner.

A new Deep Space Carrier carrying a recovered Zero Point Module (ZPM) that could finally power the city's shields. The Arrival of the Cavalry "The Siege: Part

This friction is worsened when the high-tech defenses fail. The Wraith cleverly use asteroids to trigger the nuclear mines at a distance, rendering them useless and blinding the city's sensors with radiation. Desperate Alliances and Sacrifices