Negotiations with the Langarans to use their stargate to reach the Destiny are at a standstill, so Colonel Telford initiates his Plan B—having Colonel Young and Lieutenant Scott use the communications stones to hijack their identities and open the wormhole with stolen authority. Meanwhile, back aboard the Destiny, Dr. Rush is taking a virtual vacation with his incorporeal love interest, Amanda Perry.
Final appearances of Rodney McKay and Richard Woolsey.
Tropes
- Aesop Amnesia: Rodney's overly confident about not blowing up Langara. While it's not acknowledged in-story, one would think he'd be at least a bit more humble or cautious given what happened the last time he was in a position to potentially blow up a planet and/or solar system.
- Brain Uploading: Rush's day off starts with this
- Crossover: A loose one with Stargate Atlantis as Rodney and Woolsey lend a hand to assist the Destiny Expedition. This also gives David Hewlett and Robert Picardo the distinction of being among a small group of actors to play the same character across all three Brad Wright-era Stargate shows.
- End of an Era: Meta example. "Seizure" marks the final appearances of Rodney McKay and Richard Woolsey. This ends a 9 year run for David Hewlett (which began with "48 Hours") and a 7 year run for Robert Picardo (which began with "Heroes, Part 2").
- Leitmotif: The Stargate Atlantis main theme plays when Rodney enters the episode.
- Mental Affair: Amanda Perry built a simulation just so she and Rush could have a physical relationship, or at least a reasonable facsimile thereof.
- My Eyes Are Up Here: Rodney McKay makes no friends with the female military on Destiny. Also doubles as a callback to "Twin Destinies".
- Required Spinoff Crossover: Stargate Atlantis characters finally cross over to the second SG-1 spinoff.
- Running Gag: As this episode is Rodney's swasong, it is fitting that his iconic Citrus Allergy gets brought up one last time.
- What the Hell, Hero?: The plan to convince the Langarans that dialing the ninth chevron address involved hijacking the bodies of key personnel and impersonating them. Also, Eli's reaction to having to quarantine Ginn and Mandy to save Rush, because Rush ran off for a virtual vacation.
