Episode 25 of "Numb3rs"
s02e12 The OG
Title: The OG
Original Air Date: 01/06/2006 on CBS
Writer: Andrew Dettman, Rob Holcomb
Plot Outline:
When Don and his team are called to the scene of the murder of a Los Angeles gang member, they learn they are investigating the murder of another agent who had been working undercover.
