The team reopens the case of a gifted seventeen year old boy who disappeared in 2006 when his sister finds a video clip of him involved in an underground fight club through the Internet a year later.
- Kathryn Morris as Lilly Rush
- Danny Pino as Scotty Valens
- John Finn as John Stillman
- Jeremy Ratchford as Nick Vera
- Thom Barry as Will Jeffries
- Tracie Thoms as Kat Miller
- Marshall Allman as James Hoffman
- Michael Bofshever as Darren Hoffman
- Michael William Freeman as Cole "Ares" Palmer
- Jenna Gavigan as Alexa Hoffman
- Adam Hendershott as Lucas Gladwell
- Jake McDorman as Tanner Lennox
- Robert Picardo as Arthur Lennox
- Susan Chuang as Frannie Ching
- Tony Pasqualini as Jean Emmerich
- This episode uses some elements from the 1999 film Fight Club.
- Gavin DeGraw "Chariot"
- Weezer "Beverly Hills"
- Drive By Argument "Sexlines Are Expensive Comedy"
- The Postal Service "Such Great Heights"
- Bloc Party "Plans"
- Fuel "Falls on Me"
- Closing Song: The Fray "How to Save A Life"