The NCIS team analyse what secrets could be in the hands of a terrorist targeting the Navy, when a high-tech bug is found inside a probationary agent's tooth.
With the Russian mob threatening his family, Ray takes a road trip with Mickey to Primm to recover stolen money. Bunchy and Bridget look after the baby.
Philip and Elizabeth run a tense race against the FBI to recover a dangerous package. Paige thinks about entering the family business.
Peggy comes to a shocking realisation but isn't aware her true enemies are closer than she thought. Sousa narrows in on the truth about Peggy.
A venture capitalist decides to withdraw his money from Aster Corp and invest directly in Calvin's work.
