Day 6: 1:00 AM - 2:00 AM - S6-E20
Continuity mistake: When Doyle puts Jack in the holding cell and handcuffs him, the cuff's double bar faces up on his right wrist, but when Doyle uncuffs him shortly after, the single bar faces up.
Day 6: 1:00 AM - 2:00 AM - S6-E20
Continuity mistake: In season four James Heller told Erin Driscoll that his wife, Audrey's mother, was named Susan. In this episode her name is Alicia.
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.
Cubs Fan ★