Original air date: 09/26/2017 Runtime: 43:15 min. While Pride remains on probation six weeks after his rogue takedown of the corrupt Mayor Hamilton, his team is closely monitored by Supervisory Special Agent Paula Boyd (Becky Ann Baker). Also, when the FBI arrives to run lead on a case involving a stolen big rig of nuclear waste, the team must secretly investigate from the sidelines.
Original air date: 10/10/2017 Runtime: 42:45 min. Pride and his team join forces with FBI Director Isler (Derek Webster) after a Russian operative, who's in the states to provide intelligence on sleeper agents, disappears after his Navy escort is murdered. Also, Tammy partners with former sleeper agent Eva Azarova (Cassidy Freeman) to locate the missing operative who Eva has known since childhood.
Original air date: 10/24/2017 Runtime: 43:08 min. Sebastian is placed on administrative leave after his response in a foot chase to apprehend a high value fugitive is questioned by the FBI. Also, while Pride and the team continue to track the high value target, they attempt to find a way to clear Sebastian's name.
Original air date: 11/14/2017 Runtime: 43:14 min. Wade’s son, Danny (Christopher Meyer), calls Pride for help after he’s attacked at his girlfriend’s house and she is now missing. Also, the director of NCIS mandates that Pride meet with a therapist to discuss his process for solving cases. Christopher Meyer guest stars.
Original air date: 12/12/2017 Runtime: 43:10 min. After Rita Deveraux (Chelsea Field) tells Pride that Douglas Hamilton (Steven Weber) is about to make a deal to get out of prison, Pride and the team rehash the Clearwater case in hopes of locating his mystery partner and spoiling his bargaining chip. Stacy Keach guest stars.
Original air date: 01/09/2018 Runtime: 43:09 min. Sebastian receives a plea for help from his high school friend Adrian Conner (Kristen Hager) after her business partner is killed at the Crescent City Gaming Convention. Also, FBI Special Agent Raymond Isler (Derek Webster) believes Adrian is a hacker the Cyber Crimes division has been tracking for years.
Original air date: 02/06/2018 Runtime: 40:58 min. The NCIS team investigates the murder of a petty officer who was in town to help a refugee family being recruited by terrorists. Also, Wade works on the special election campaign for Mayor Zahra Taylor that takes place during Mardi Gras. Amanda Warren guest stars.
Original air date: 02/27/2018 Runtime: 43:15 min. FBI Special Agent Raymond Isler (Derek Webster) asks Pride for help with an off-the-books opioids theft investigation he is personally invested in. Also, Percy is sent undercover as a getaway driver with Isler as the muscle for a job tied to the case.
Original air date: 04/03/2018 Runtime: 43:14 min. Percy and Lasalle go undercover at a high-stakes, underground poker game after the organizer targets players with access to a naval research laboratory. Also, Laurel Pride (Shanley Caswell) visits her dad during spring break to discuss options after her upcoming graduation.
Original air date: 05/08/2018 Runtime: 43:00 min. When journalist Oliver Crane (Mark Gessner) posts a scathing article documenting Pride’s “reckless use of justice,” the team is concerned about the fallout from the piece and the confidential information included in the story. Also, Rita Devereaux (Chelsea Field) warns Pride that someone in D.C. has coordinated this attack on him, and the article is just the beginning.
Original air date: 05/15/2018 Runtime: 84:52 min. Pride assembles an off-the-books team with hacker Elvis Bertrand (Tom Arnold), retired Green Beret Sydney Halliday (Riann Steele) journalist Oliver Crane (Mark Gessner) and attorney Elliott Newman (John Cothran, Jr.), to search for a loophole when he faces a grand jury indictment for abuse of power. Also, Pride and the team uncover a sinister plot during the New Orleans Tricentennial Fleet Week celebration, on back-to-back episodes of the fourth season finale. Lou Diamond Phillips guest stars as Deputy Chief Gossett.