Season 18 aired between 02 Jan 2008 and 21 May 2008, 18 episodes.
Episodes
E01
Called Home
02 Jan 2008
E02
Darkness
02 Jan 2008
E03
Misbegotten
09 Jan 2008
E04
Bottomless
16 Jan 2008
E05
Driven
23 Jan 2008
E06
Political Animal
30 Jan 2008
E07
Quit Claim
06 Feb 2008
E08
Illegal
13 Feb 2008
E09
Executioner
20 Feb 2008
E10
Tango
27 Feb 2008
E11
Betrayal
05 Mar 2008
E12
Submission
12 Mar 2008
E13
Angelgrove
19 Mar 2008
E14
Burn Card
23 Apr 2008
E15
Bogeyman
30 Apr 2008
E16
Strike
07 May 2008
E17
Personae Non Grata
14 May 2008
E18
Excalibur
21 May 2008