David Denman

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.

Michael helps Pam get a part-time job so she can afford art school; Michael and Holly get an early start on their date night; after the office is robbed, Michael decides to raise money for all of the lost items.

Ruby believes the recent deaths are the work of a stalker and suspects her new client, Isaac; AJ insists Ruby must track down all her exes to warn them they're in danger, forcing her to confront how she's treated people in the past.

Walden joins a group for adoptive fathers, and finds it to be a nice escape from Alan.

Jane sues a matchmaking service for fraud; Grayson and Kim are on a case with two dueling psychic sisters.