John Lavelle

When a Navy Commander found murdered leaves behind a message written in blood, the NCIS team links it to a manuscript that may hold a threat to the national security.

Thanksgiving brings Grover’s parents (guest stars Louis Gossett Jr. and Gladys Knight) and brother Percy, Jr. (Clifton Powel) to Oahu for a visit tainted by sibling rivalry, and Five-0 investigates a thief who is crushed to death by an empty safe.

When robbers hit a diamond exchange and take hostages, Don and the team find an unlikely ally in convict John Buckley, who may help the team's investigation when they believe the men are copying Buckley's criminal strategies.

When a man named Karl Haas ends up in the morgue, it starts an explosive chain of events with Henry and Jo racing to track not just a murderer, but to solve a decades-old notorious art crime. Is Karl a hero, or a traitor and a thief? Karl's son, Erik (guest star Patrick Woodall — The Normal Heart), who is an art dealer, inherited priceless works of art from his father that was stolen by the Nazis during World War II. Meanwhile, Adam (recurring guest star Burn Gorman — Game of Thrones) pays an unsuspecting Abe a furtive visit, and Henry's paternal instincts force a face-off with his nemesis. Flashbacks take Henry to 1814 where he is shocked to learn that his own father's shipping company was involved in illegal and immoral practices. Finally, Abe receives a priceless gift. Guest stars also include Daniel Gerrol (Still Alice, Sisters) as Robert and Harris Yulin (24, Frasier) as Eli.

Tommy (Jonathan Tucker) gets pulled into Jimmy (Thomas Guiry) and Kevin's (Billy Lush) bookmaking action when he realizes the guy about to get busted for not paying is his friend Maxwell (guest star John Lavelle). Kevin Conway guest stars.