The family goes to the annual school fair, Phil and Claire each plan a separate surprise for their 20th wedding anniversary, and Haley has an awkward encounter.
As the NCIS team investigate a teenage girl's abduction, Ziva and Abby work closely with her young friend, who witnessed the kidnapping.
The intelligence team chases heroin magnate Derek Keyes, who takes a hostage; Roman confides his concerns about Ruzek to Burgess; Olinsky opens up to Platt about a hidden secret.
The team attempt to catch a kidnapper who has been murdering children. They have a big job ahead, as they try to follow a lead that dates back 20 years.
The crime-solving team are called to investigate the death of a local decorated police officer. Lisbon has to put personal issues aside in order to crack the case.