After Ducky is stabbed at a crime scene, the team uncovers disturbing secrets from the good doctor's past.
The Lightman Group investigates a terrorist bombing.
Jonas and Williams perform emergency battlefield surgery on Grey in an effort to keep him alive after he is critically injured during a mission...then must endure the team's most devastating loss.
Bob's moral conflict over the team's deadly tasks distracts him during a sniper mission, putting the whole team at risk.
