When the decomposed bodies of eight young women appear in a newly made mass grave in the Nevada desert, Finley quickly realizes that one of the women--and presumably the other seven--is a victim of her long-time nemesis, Seattle serial killer Tom Cooley.
moreless
The BAU is called to the Angeles National Forest in California after bodies mysteriously turn up in the mountain lakes there. Meanwhile, Rossi must make a difficult decision regarding his ex-wife, Carolyn.