Season 4 aired between 03 Oct 2008 and 15 May 2009, 23 episodes.
Episodes
E01
Firestarter
03 Oct 2008
E02
Big Chills
10 Oct 2008
E03
Ghost in the Machine
17 Oct 2008
E04
Save Our Souls
24 Oct 2008
E05
Bloodline
31 Oct 2008
E06
Imaginary Friends and Enemies
07 Nov 2008
E07
Threshold
14 Nov 2008
E08
Heart & Soul
21 Nov 2008
E09
Pieces of You
05 Dec 2008
E10
Ball & Chain
19 Dec 2008
E11
Life on the Line
09 Jan 2009
E12
This Joint's Haunted
16 Jan 2009
E13
Body of Water
23 Jan 2009
E14
Slow Burn
06 Feb 2009
E15
Greek Tragedy
13 Feb 2009
E16
Ghost Busted
27 Feb 2009
E17
Delusion of Grandview
06 Mar 2009
E18
Leap of Faith
13 Mar 2009
E19
Thrilled To Death
10 Apr 2009
E20
Stage Fright
24 Apr 2009
E21
Cursed
01 May 2009
E22
Endless Love
08 May 2009
E23
Book of Changes
15 May 2009