After the bombing from the last episode, Gibbs spots another young boy who looks troubled. He takes off after him but loses him.

The team figures out that the name of the terrorist group is "The Calling", and their methodology involves recruiting kids and buying S-mines on the black market.

After identifying one of the cell leaders named Sadiq Samar, the team discover the troubled boy hiding in a secret room in Samar's house. He holds a gun and is planning to shoot, but Gibbs gently disarms him.

It turns out the boy had been recruited by The Calling, and had been deliberately left at the house.

The terrorist groups learns that the boy didn't follow through on his instructions, so they plan retribution on him.

Meanwhile, Ned Dorneget and McGee are sent to Cairo to represent NCIS on an international think tank to hunt the terrorists. They learn that a cell leader named Rousseau has been captured. McGee decides to accompany Rousseau back to the U.S. so that he can interrogate him. He learns that Rousseau has a nasty plan for the think tank, which includes Dorneget.

What is that plan? Will he succeed? Does Dorneget make it safely and if so, which member of the hunting party won't make it out alive?

What does the terrorist group plan to do to the young boy for not shooting the gun?

You can find the answers to these questions and more when you watch NCIS online!