NCIS investigates the death of a Naval IT officer with high level clearance at a rehab center, and Kensi and Deeks go undercover. Surveillance tapes lead the team to another patient who they find and rescue from bad guys. Her statement leads the team to a temporary meditation coach and, upon searching his browser history, locate him and the bad guys from earlier. Meanwhile, Eric and Nell discover a drone has been hacked and is going to bomb innocent civilians. Realizing someone else is controlling the drone, Kensi notices a health bar wrapper that traces back to the admissions administrator at the rehab center. Meanwhile, Callen thinks about getting a tattoo and Kensi and Deeks go out on a date.
