The Naval Criminal Investigative Service's team, led by Special Agent Leroy Jethro Gibbs, conducts criminal investigations involving the U.S. Navy and Marine Corps.

S1, E21

Split Decision

A marine's gruesome death leads the agents to a marine base boxing ring and an agency sting.

S1, E22

A Weak Link

During a training exercise for a top secret mission, a Navy SEAL plummets off a cliff to his death.

S1, E22


Gibbs is determined to catch the man who held some of his team hostage months ago.