NCIS Episodes :-  Chained

Tony is ordered to be disguised as a runaway inmate who has to build friendship and trust with a suspect for getting out the information about missing Iraqi historical relics. But all of a sudden, Tony is gone traceless. Even GPS locator, inserted on him by Abby, remains unresponsive. Subsequently the series of happenings convince the team that Tony is in a great danger and time in hand is too short to get him out from such nasty situation.