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

Everett is cornered and fed upon by a Wraith, while Lt. Aiden Ford is caught in an explosion that hurls him into the sea.

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

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

[s1e20] The Siege: Part 2 Apr 2026

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

Everett is cornered and fed upon by a Wraith, while Lt. Aiden Ford is caught in an explosion that hurls him into the sea. [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 first season finale of Stargate Atlantis ,

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 Aiden Ford is caught in an explosion that