24

When Nina's deception was finally discovered, the facility went into lockdown. Why then, was the elevator still operational and the garage open to allow Jack to drive in?

Goof: There is a huge goof when Jack is attempting to get proof of Nina's deception. According to the tech that Jack calls, the video surveillance of the room where Jamey had been killed had been erased by Nina, but she didn't know about the digital backup which is the proof Jack showed to Mason. The problem is that when Jamey was discovered as a traitor spying for Gaines (7:00am-8:00am), Tony and Nina put her in that room specifically because it didn't have any surveillance as they didn't want Gaines to see that they had Jamey in custody.

Goof: (Continuity) Kim throws hot coffee on the face of a Drazen's assassin. 10 or 15 minutes later the same guy appears again shooting Jack Bauer with no signs of burn on his face.

As Jack is firing at the Drazens on the pier, the visored head of a man (no doubt the show's ballistics advisor) is visible just over his shoulder. It's probably far more noticeable on the DVD release than it was during broadcast, but this guy is REALLY visible!