Kidnappers abduct one teenage girl (Rosie) but fail to get the second girl (Lydia) due to the intervention of Lydia's father, whom a bad guy shoots to death, and who is a captain in the US Navy; both girls are Navy juniors; Gibbs and company and more, including the FBI, investigate. Lydia stays with Ziva until her mother, a commander in the US Navy, arrives from her aircraft carrier, in the Arabian Sea; Lydia receives an incomplete text message, which leads the gang to a camping trailer in Virginia, where they find a burn phone and a dead body. While Ziva, Abby, and Lydia hang together overnight at Gibbs's pad, they get a visitor; Ziva and Abby deal with him, and Lydia recognizes him. The visitor names the other kidnappers to Gibbs, who also gets information through a long-time friend, then Gibbs, the gang, and others meet a helicopter at dawn and then meet the third kidnapper plus Rosie. Ziva's date arrives and invites Tony to join them, so they become a threesome.