Dr. Jennifer Keller (Jewel Staite) works to save the life of
Elizabeth Weir (Torri Higginson) after the Replicator attack
on Atlantis leaves her critically injured.



With Atlantis floating in deep space and running out of power,
Dr. Radek Zelenka (David Nykl) and the rest of the city's
scientists work furiously.



Ronon (Jason Momoa) stands by helplessly as the city's power
steadily runs out.



Colonel Sheppard (Joe Flanigan) discusses a new plan for survival.



Eike Schroter / SCI FI Channel
Rodney (David Hewlett) is called upon to join a dangerous
mission and pilot a Puddle Jumper.