“Endgame” (season 2, episode 21; originally aired 5/4/2003)

“Endgame” (season 2, episode 19; originally aired 3/30/2003)

“A Free Agent” (season 2, episode 17; originally aired 3/2/2003)

“A Free Agent” (season 2, episode 15; originally aired 2/9/2003)

“Phase One” (season 2, episode 13; originally aired 1/26/2003)

“A Higher Echelon” (season 2, episode 11; originally aired 1/5/2003)

“Passage, Part 2” (season 2, episode 9; originally aired 12/8/2002)

“The Counteragent” (season 2, episode 7; originally aired 11/17/2002)

“The Indicator” (season 2, episode 5; originally aired 11/3/2002)

“Cipher” (season 2, episode 3; originally aired 10/13/2002)

“The Enemy Walks In” (season 2, episode 1; originally aired 9/29/2002)