The tattoo Kiefer Sutherland has on his wrist during the final scene is real. Sutherland opted to get it permanently instead of reapplying make up everyday.
This episode marks the final appearance of former series regular Sarah Wynter (Kate Warner). Her guest appearance is edited out in the 43-minute version of this episode.
This episode marks the first time that a flashback is used to start the episode before the real-time clock begins to tick.
This is the first season premiere that doesn't start in another country.
This episode marks the first appearance of Chloe O'Brian.