8 pm/ET CBS
NCIS, which is a spin-off of JAG, may spin off a series of its own. Tonight's episode (the first of a two-parter) introduces characters, played by LL Cool J and Chris O'Donnell, who are rumored to be the leads of the series that could debut in the fall. They play undercover agents for NCIS's Office of Special Projects (OSP) in Los Angeles. In the episode, the murder of a marine sends Gibbs and McGee to L.A. to work with the OSP, and the case turns into a matter of national security.
Read on for previews of Dancing with the Stars, Rescue Me, Law & Order: Special Victims Unit and Life After People.