[s4e13] - Quarantine

To reach the control room, John Sheppard is forced to perform a dangerous external climb of the Atlantis central spire, providing some of the episode's most tense moments.

Stuck in a maintenance corridor, they work together to find a technical workaround to the lockdown while Zelenka struggles with claustrophobia. [S4E13] Quarantine

As the lockdown progresses, the city initiates a fail-safe that begins to vent the atmosphere in certain sectors to "purify" the air, putting the lives of everyone onboard at risk. Themes To reach the control room, John Sheppard is

The episode explores themes of and vulnerability . Without their advanced technology or the ability to communicate, the team is forced to rely on their wits and their trust in one another to survive a threat generated by the very home they are trying to protect. Themes The episode explores themes of and vulnerability