When the husband of Gibbs' and Fornell's ex-wife is kidnapped, the NCIS team partners up with the FBI to investigate.
A murder investigation becomes personal for Lisbon when she learns that her underachieving younger brother, Jimmy, is being sought as a key witness.
The team investigates the murder of a powerful divorce lawyer; Brennan is still adjusting back to regular life after being on the run.
Constance turns to Violet for help with Tate. Meanwhile, Ben sees a new patient who fears the legend of Piggy Man.
When the parents of a perfect family are murdered and discovered by their son, the team soon realises that things are not as they seem.