The team tracks an elusive international arms dealer who recently murdered an MI6 officer; Abby races Delilah to the hospital when her labor starts three weeks early.

Parker’s delinquent past resurfaces when NCIS is called to Philadelphia to investigate the death of a Navy petty officer.

Parker’s delinquent past resurfaces when NCIS is called to Philadelphia to investigate the death of a Navy petty officer.

Gibbs is granted protective custody of a 10-year-old orphaned refugee, Elena, when an NCIS case reveals she is the target of a violent gang.

When a Navy captain is found dead with an unusual costume hidden under his uniform, NCIS uncovers a secret society of real-life super heroes and must track down the villain.

Callen and Sam pull Granger’s daughter, former spy Jennifer Kim, from witness protection to help the team locate an underground spy who has obtained an arsenal of bomb materials.

When Matty’s goddaughter and her boyfriend are killed in a San Francisco park, Mac and the team investigate the crime and start to suspect that the 1970s Zodiac Killer has…