722 - “Extreme Measures.”
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A - plot :
Bashir receives a midnight visit from Director Sloan of Section 31, who quickly realises he has been drawn into a trap. With O’Brien and Garak’s help, Sloan is immobilised and his implanted suicide device deactivated. Bashir tries to persuade Sloan to give him the cure to Odo’s disease, and they argue about the relative merits of saving the Founders, comparing Section 31 to the Tal Shiar and the Obsidian Order. The discussion grows to encompass all of Bashir’s beliefs in the Federation, which he believes has no place for Sloan’s organisation. Sloan calls Bashir naïve and arrogant for thinking he knows better than the original creators of the Federation. They realise neither will win their argument, and Bashir is running out of time.
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Garak tells the doctor he will soon have to use harsher methods. Bashir produces a Romulan mind-scanner, illegal in the Federation. With O’Brien as his good angel and Garak as his bad, Bashir is forced to interrogate and torture Sloan until he gives up the information. Sloan taunts Bashir with promises of spy information on everyone, but the doctor presses on. Sloan is on the verge of death before he gives Bashir the cure, at which point Bashir stops, but the procedure is too far along and Sloan dies. Bashir gives the cure to Odo, who begins to recover.
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B - plot:
Kira, Odo and Garak have returned from Cardassia. While Garak helps Bashir, and O’Brien works on the Breen weapon, Kira stays by Odo’s bed. The changeling, who lies disintegrating in agony, tells her to leave him - he doesn’t want her to watch him die. She at first refuses, but finally agrees and heads back to Cardassia with Garak and Damar, without knowing if Bashir has found the cure or not.