Complete story — includes the ending
Escaping from the Replicators' satellite weapon, Atlantis encounters further problems as the city's shield begins to severely deplete their over-taxed ZPM. With limited resources, the team undertakes a myriad of repairs, whilst Dr. McKay and Dr. Keller are forced to make a tough decision when Elizabeth Weir is injured. Ultimately, they are forced to reactivate Weir's Replicator nanites to save her life. While the city is being repaired, they run too low on power to make it to hyperspace and remain stranded in space. McKay, Sheppard and Zelenka realize that they have a Puddle Jumper with a hyperdrive capable of reaching the nearby Replicator homeworld and decide to raid the planet for a new ZPM.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Stargate Atlantis season 4. HTML formatting and reference markers removed. · Content license