Alias

The plane transporting Sark is painted in KLM livery. Why would the CIA use a used passenger airliner painted in such recognisable colours? Moreover, while the Autopilot can keep a plane on a course and glideslope towards a runway, it needs an ILS localizer and thus a runway for this; moreover, it cannot reduce its own thrust, set its flaps, lower its landing gear, arm its speedbreaks or perform other actions necessary for landing without pilot input. It seems unlikely a Boeing 747 could land in the middle of the desert with the entire crew on board dead.

Dixon staring at an exploding building in horror and Syd trying to get Dixon away is a lot like when Dixon blew up a couple of CIA agents by accident in "Doppelgänger." Sydney stared at an exploding building in shock and Dixon try to get Sydney away.

This is not the first time Jack and Sark meet face to face. It's also not the first time Jack and Sark trade an object for a human life. Jack had to get Will back from Sark during season 1 in almost the same way.

This is not the first time Dixon almost killed an innocent person (of the particular crime) during interrogation. The first time was Will in the first part of Season 2 season finale.

Number 47: (inverted) Artifact 45 is being kept in room 74.

Number 47: When looking for artifact 45, Sydney passes by artifact 47.

Number 47: The FAA server log 004 that Marshall pulls up shows "Results Log 001247XY4545."

Erin runs after Dixon to offer him his 'hard copy' and offers him a CD. Hard Copy means a printed version, a copy on CD would be a 'soft copy.'

Goof: During the kiss between Sloane and Dr. Barnett, Sloane uses his left hand to kiss her but in a couple shots his hand is not there.