8.30PM TUESDAY / JUNE 10

While on a stakeout to try and catch a thief suspecting of nabbing a high-tech radar, the team accidentally end up witnessing a murder, which appears unrelated to the theft. Although Gibbs has told the team to focus on the weapons theft, Tony can't get it out of his mind and does some covert investigation with the detective assigned to the case. He discovers that the murder victim is the same guy who tipped off NCIS on the location of the missing radar, therefore the two cases are related. The case becomes more convoluted when an innocent man is used as a pawn to help determine the identity of the murderer.

Meanwhile, Ducky secretly asks Abby to run some blood tests for him, but Abby is shocked when she discovers who they are for. What is Ducky up to?