The geography for the fight between Chase and Rabens is very off for a real-time show. This is because a cut down version of the fight was used in the episode. The full fight can be seen on the Season 3 DVD. For example, when Chase goes to clamp the device to his wrist, Rabens was at his feet, because he was heading to the window to see his helicopter. But when he goes to grab Chase, he is at Chase's head, on the other side of the room. In the full version, Chase had flipped Rabens over his head, to get him on the other side of the room.
During the car chase Jack passes by the same cars three times.
It is unlikely that a middle school would be open on a day when the President issued a Code Red.
When Gael's wife shoots Saunders, the second bullet hole can be seen in Saunders' shirt before the second shot is fired.
Stephen Saunders' height is given as 5'10" in this episode, even though Paul Blackthorne is significantly taller at 6'4½".
Camera shadow clearly visible on Jack as it pans around him, just before the commercial break and the ticking clock is shown to read 12:33:44.
Michelle tells Brad that Rabens drove away from the Metro station in a light blue Malibu, whereas Chloe later identifies the car as a light green Malibu.
Julia assumes she will be sent to jail for murdering Alan. Anyone convicted for murder would be sent to prison, not jail.