NCIS: Origins

Gibbs and Franks investigate the disappearance of a young Marine connected to a mysterious compound with a charismatic leader.

When the body of a college swimmer washes up on the beach, the team must determine if it was an accident or murder. Also, Gibbs prepares for his first interrogation.

When Dr. Donald "Ducky" Mallard, a liaison from D.C. headquarters and an old acquaintance of Gibbs, arrives to evaluate whether Pendleton needs an in-house medical examiner.

Tensions rise when Franks' estranged older brother, Mason, blows into town, desperate for help after hitting rock bottom.

When a naval officer mysteriously dies in the '90s, Gibbs and the team travel to Serenity, Calif., where they encounter an investigation that will reverberate for decades.

When an anonymous tip leads to the discovery of a Marine's body at a crime scene, Randy believes it could be connected to a previous case where a coin was left in the victim's throat.