Aviva

One marine is murdered and another is critically injured outside a bar. When the investigation takes the team to Gibbs' home town, the NCIS finds the injured marine was the target of the attack.

Gibbs is forced to revisit his painful past when his former mother-in-law turns out to be a witness in a murder investigation.

An anonymous confession to the killing of a 16-year-old girl is found. As a result, Rush and the team are forced to enter the complicated, emotional and vicious world of high school cheerleading in order to solve the murder.

Henry struggles as the new team leader; Casey joins the team; Ron Donald returns; Roman trades places with an incognito rock star.

Ron and Henry clash at a fundraiser where parents will do anything to get their children into an exclusive preschool.