[s4e13] Quarantine Apr 2026

: The team eventually learns there is no real contagion; the quarantine was a system malfunction caused by an atmospheric anomaly.

: The team must regain control of the computer systems to override the countdown before the city is destroyed. Key Character Developments [S4E13] Quarantine

: A freak ion storm triggers Atlantis's automated quarantine lockdown, trapping members of the expedition in various parts of the city and threatening both their safety and their secrets. Trapped Pairs & Plot Threads : The team eventually learns there is no

: To stop the distress beacon, Sheppard performs a dangerous external climb up the side of the city's central spire to reach the control room. Trapped Pairs & Plot Threads : To stop

: Trapped in the botany lab. McKay is about to propose with a diamond ring when the lockdown occurs. Due to his nervous nature, he eventually convinces himself he has contracted a fatal contagion.

: This episode builds the early romantic tension between Ronon and Dr. Keller. "Stargate: Atlantis" Quarantine (TV Episode 2008) - IMDb

: Stuck in the infirmary. Ronon injures himself further by trying to pry open the doors with an IV pole, leading to a tense bonding moment as Keller treats him. The Climax & Resolution