Nick McDow

The Lightman Group are called in when Washington DC comes under terrorist threat. With national security at stake, Cal and co need to be on their A-game.

When a sailor is murdered, the agents quickly locate the suspect and bring her back to the crime scene for identification, but the agents watch on in horror as Ducky is stabbed at the crime scene. They then uncover a secret from Ducky's past that led to the attack.

On a mission in Lebanon, Jonas and Williams perform emergency surgery when Grey is critically wounded.

Bob's crisis of conscience threatens to undermine a mission, and a dark secret emerges from Molly's past.