Gideon, Reid and Prentiss travel to Guantanamo Bay to interrogate the leader of a terror sleeper cell being detained there.
Susan gets some surprising news while on a romantic weekend with Ian; Lynette continues to support the family as Tom chases his dreams.
The team's investigation into a lieutenant's death is connected to a citywide blackout.
Grissom and Sara investigate the murder of a mental-hospital patient and quickly narrow down the suspects to a handful of other patients and staff members.
Chris enlists Rochelle's help as he searches for a cool outfit for his school picture.