So the new norm on Atlantis is that now they have a power source, they can gate back to Earth immediately, but returning to Atlantis takes 18 days on one of the two flying battleships. Some of the story is told in flashback, where Beau Bridges gets a short scene as General Landry, Garwin Sanford makes a final appearance as the fella Elizabeth left behind, and where Sheppard gets an offscreen promotion to lieutenant colonel. The rest of it is onboard the battleship dealing with a computer virus. You would have thought this was old hat when SG-1 did a computer virus story five years previously, but here we are in 2005 still doing one. It does climax with some space combat that had our kid really excited, so points for that at least.
Fire Breathing Dimetrodon Time 