Lightman is hired by a wealthy woman to do a background check on her new boyfriend, so he digs deep into the man's past to find out the truth about this social chameleon.
While on the flight back from Paris, Tony and Ziva learn that an assassin is located on the same flight - and realise their assignment to protect a government witness in an embezzlement case is in jeopardy.
The team suspects that an arson attack in 2004 which killed a psychiatrist, might have been caused by the deceased's former patient.
Five-0 hunt for a killer who escaped a murder scene by pulling off a daredevil motorbike stunt. They also gear up for a mud run.
Claudia, a photography professor, is haunted by the ghost of a former student. Melinda learns that she had an affair with him and that his girlfriend found out about it.
