Keith Pillow

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.

Rachel dreams about a romantic encounter with Joey after a visit to the set of "Days of Our Lives." Chandler buys a non-refundable weekend getaway for himself and Monica, but when she can't get time off at work, Ross joins him. Meanwhile, Phoebe drives people away from Monica's restaurant with her terrible guitar playing.