[s1e20] The Siege: Part 2 Apr 2026

A new Deep Space Carrier carrying a recovered Zero Point Module (ZPM) that could finally power the city's shields.

With the Wraith overrunning the city, Weir is forced into a hostage situation with the Genii to trade for prototype nuclear weapons. Back at Atlantis, Rodney McKay and Radek Zelenka work through exhaustion to complete the unfinished Genii bombs. The episode concludes on a gut-wrenching cliffhanger: [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. A new Deep Space Carrier carrying a recovered

"The Siege: Part 2" perfectly encapsulates the high stakes of Atlantis , leaving viewers wondering if the expedition's survival was even possible. The episode concludes on a gut-wrenching cliffhanger: When

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

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

Railguns and Naquadah-enhanced nuclear mines deployed to intercept the approaching Wraith Hive ships.