Matt Huhn

When the remains of a young documentary filmmaker are found in a ventilation shaft in an underground Washington, DC, tunnel, Brennan and Booth must venture into the maze of tunnels beneath the city and are surprised to discover a world of homeless shelters underground. Clues lead them to suspect that a man living underground was involved with the murder, but instead he gives them valuable information about the purpose of the victim's underground project.

Enterprise comes to the aid of the Triannon, a species that worships the Spheres and their Builders. Once aboard Enterprise, their leader D'Jamat commandeers the ship in order to fight a holy war, and wipe out the heretics on his homeworld.

When a suburban soccer mom is murdered, the CSIs uncover her family's dark past, while Delko continues his undercover mission.