After a bombing at a party kills the Secretary of the Navy, DOD inspector Parsons starts to believe Gibbs and helps him find the people trying to kill the NCIS team.
Bravo Team travel overseas for a foreign training exercise to disguise their true mission, which is to rescue a high-value target that is being held hostage; NASCAR driver Austin Dillon gives the team a special driving lesson.
A conspiracy theorist assists the team when a missing artefact appears to be the key to solving a double murder.
A convicted murderer escapes and begins to kill again, and the assailant's original arresting officer, Mac Taylor, comes to help Horatio Caine recapture the felon.
The team searches for a group of video gamers that has started to play the game in real life, killing police officers, stealing evidence, raping women, and robbing a bank.