Day 2: 5:00 P.M.-6:00 P.M. - S2-E10
Revealing mistake: Kate Warner holds a bloody towel to her wounded earlobe. She puts it away and you can see a very clean band aid around the lobe. (00:27:55)
Day 2: 5:00 P.M.-6:00 P.M. - S2-E10
Revealing mistake: Right after Kim Bauer and Miguel start a fire in the police van, the vehicle swerves off the road and tumbles. In the next shot, you see "Kim" on top of the car, trying to get in through the window (the car is about to fall off a slope or something). Pay close attention, zoom in, or whatever, the woman is not Kim but is a stunt double. She's got a much chubbier-looking face and is definitely not Kim Bauer. This occurs at 19:40 in this episode. (00:19:40)
Answer: According to Jack in season 5, Nina was "deep cover" before the pair ever met, so it's safe to assume she was recruited before she joined CTU. As for what her primary mission was, who knows? Perhaps it was to gather sensitive intel and pass it on to her superiors. Given that she worked for an intelligence agency, it's not a stretch. Or perhaps we may find out in season seven.
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