The team and Coast Guard Investigative Services join forces when a Navy diver seeking sunken treasure is murdered.
Kensi goes undercover to gather more information, after a secure facility on a military base is compromised. She attempts to find out what exactly the thief was after.
A bride, Hannah Bloom, dies in the minutes before her wedding ceremony but the investigation is halted when her father withholds consent for her autopsy to be carried out.
The ghost of a star baseball pitcher is out for revenge on the coach he blames for his death.