17. Valhalla (2011)
After a series of murders, Prentiss becomes suspicious of a former nemesis, and fears for the safety of her team.
Release date: 2011-03-02
User rating:
8.2 / 10
13 votes
Season number: 6
Episode number: 17
Runtime: 42 minutes
Director: Charles S. Carroll
Writers: Erica Messer, Simon Mirren
Guest stars
Cast
Rest of guest stars - click here to expand
Fionn William O'Brien - Calum, Thor Edgell - Byron Delaney, Jim Castillo - Weatherman