When a teenager is murdered, the team must determine why she was targeted and if the person responsible was a hired professional.
On the night before Chin Ho's wedding, the team's investigation into a man left to die in an abandoned bunker intersects with Capt. Fryer's case.
McGarrett and the team search for a missing bus full of school children and those responsible for the crime.
McGarrett travels to North Korea with Jenna Kaye to deliver ransom to rebels holding her fiance hostage the team investigates the murder of an investigative reporter who appears to have connections to Jenna.
The physically altered corpse of an unidentified man is found in the trunk of a stolen car Danno crashes on McGarrett's couch.
The murder of a bride on her wedding day leads the team to a strip club.
The team protects a witness who is on her way to testify against a dangerous drug cartel -- while the cartel is in hot pursuit.
As the members of team Scorpion try to save lost hikers, their helicopter crashes, igniting a large wildfire and injuring the pilot.
The team must facilitate peace discussions when a conflict in Eastern Europe threatens to escalate into World War III.
The members of the team travel to Mexico when the daughter of a tech billionaire is abducted Walter participates in an interview that leads to hurt feelings.
When a petty officer is found dead, the team's participation in the annual Red Dress Run comes to a halt.
When an Australian Royal Navy Lieutenant is murdered in New Orleans, Special Agent Naomi Parsons (Kate Beahan) is sent to work with Special Agent Pride.
Baitfish murders a person close to the team in order to send a message to Pride a citywide hunt for the elusive criminal takes place.
Lasalle's brother, Cade, needs the team's help when he becomes a murder suspect -- and cannot remember what happened Lasalle is determined to prove Cade's innocence, despite the wealth of evidence against him.
When a Navy commander's car is stolen with his baby inside, the team must determine if it was a targeted abduction.
During the autopsy of a petty officer who seems to have died of natural causes, an armed man holds Wade, Sebastian and Danny hostage in the morgue.
When a sailor is killed in a strip club, the murder weapon turns out to be linked to other unsolved cases Brody receives a visit from her ex-fiance.
Pride believes Baitfish has returned and has the NCIS team chase down leads in an attempt to locate him.
The NCIS team tries to narrow down the motive when a Navy recruiter is murdered in a hit-and-run Lasalle worries about his brother.
A retired SEAL -- who tracked people impersonating military personnel -- is murdered Brody finds that LaSalle is uncharacteristically unenthusiastic about Christmas.