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The NCIS team and an arms dealer confront in a final showdown that results in an explosive and deadly ending.

During an autopsy, Ducky comes across a discovery that spurs on a search for a missing child. Meanwhile, Tony faces his feelings for Jeanne. Stream all the latest NCIS episodes only at iwatchncis.com for free.

Gibbs and Mann team up for the investigation into a Marine Captain who had access to classified information. Things becomes increasingly complex when one of the witnesses is the man's ex-wife.

Gibbs and his team identify a body labeled as a John Doe as a felon known for erasing pasts. Watch this episode on watch NCIS online for free.

The NCIS team is called when a naval officer threatens to jump off of a rooftop. Soon the attempted suicide turns into a murder investigation.

The team investigates a mysterious death on a top-secret research ship. They soon uncover a deadly secret that could threaten their lives as well.

Gibbs helps an old friend who is still coping with the death of his daughter who died 15 years earlier. As they investigate, Gibbs stumbles across a shocking conclusion to her death.

The NCIS team looks into the assassination of a Navy Admiral. The case takes a shocking turn when they encounter a woman searching for her husband, a refugee from Africa. Watch this episode on watch NCIS online for free.

The team watches over a 9-year-old boy whose father is a wanted man. Their search for the boy's father leads them into the wilderness where they uncover the truth about the man's past. This summary has been brought to you by watch NCIS online website, iwatchncis.com.

The team is assigned to find a Marine who thinks he's still in Iraq. Following a violent encounter, the NCIS team learns that the man is part of a top-secret experiment.

An investigation ensues when a Muslim Marine is found dead near a mosque. Out of respect for the families beliefs, Ducky refuses to perform an autopsy.

When naval radar goes missing, NCIS stakes out a warehouse to catch the thief. However, plans change when the team witnesses a murder instead. Stream all the latest NCIS episodes only at iwatchncis.com for free.

When the team looks into a fatal dog mauling, Abby risks her career to prove the dog is innocent. Meanwhile, Gibbs begins to get closer to the secret Jenny is keeping. Watch NCIS online at iwatchncis.com.

When the body of an arms dealer surfaces, the team is put under FBI investigation for his murder and Jenny Shepard becomes their number one suspect. Watch free NCIS episodes online at iwatchncis.com.

After a mortar attack in Baghdad is ruled a murder, two NCIS members are sent into the heart of Iraq to handle the investigation. Watch NCIS online at iwatchncis.com.

While on assignment undercover, Ziva's task takes a shocking turn for the worst when the serial killer the team is tracking becomes suspicious of her.

Palmer becomes the main target of a mysterious killer who he recognizes as a person from his past. iwatchncis.com, the ultimate community to watch NCIS online.

A search for the killer of one of their own puts all the agents at risk. This summary has been brought to you by watch NCIS online website, iwatchncis.com.

The team continues to race against the clock as they hunt for the killer who took the life of one of their own. Watch free NCIS episodes online at iwatchncis.com.