A Navy therapist who is working to get justice for victims of sexual assault is murdered; Carter's mother confronts him when he refuses to talk to the FBI for a background check on her behalf.

When a torpedo hits a fishing trawler at sea, the entire Gulf Coast is in jeopardy as Pride and NCIS race to find the submarine before it can strike again.

The team investigates a suspicious death and the missing key piece of evidence is a top secret, high-tech battery; Pride and the team realize there could be deadly consequences if it falls into the wrong hands.

The team continue to investigate the murder of an officer who was about to blow the whistle on police misconduct; Pride must get creative in order to finally get rid of the dirty cops; the mayor asks Pride to join her new task force.

Pride and the team take on a group of dirty cops when they discover that a murder victim was also a key witness in multiple excessive force cases; Tammy faces the reality of being in a new relationship.

Tammy and Carter continue to investigate a suspicious death aboard a COVID-infected humanitarian ship; Pride and the team discover what may be the key to finding the killer; Wade helps a grieving woman.

As New Orleans grapples with the effects of COVID-19, Pride sends Tammy and Carter to investigate a suspicious death aboard an offshore humanitarian ship; Wade is overwhelmed by the high volume in the morgue due to COVID-19.