Medium
A Necessary Evil (5x7)
Air date: Mar 23, 2009
Allison is visited once again by the ghost of Agent Cooper, who tries to help her figure out who the real murderer is in a confusing case. Allison begins to question Agent Cooper's motives though and is unsure whether or not she should heed his advice.
- Premiered: Jan 2005
- Episodes: 130
- Followers: 596