Season 5: Episode 17 - Between the Lines

Between the Lines: An undercover ATF agent is killed by the Yakuza and his execution is posted online. The team must investigate and learn if he was tortured and exposed other agents who are undercover. They discover another ATF agent is working with the gangs and providing intel. Granger can’t find Kensi in Afghanistan and we learn that she has turned herself over to the insurgents and is looking for the white ghost.