Tony's undercover mission comes to an end when his car is blown up - seemingly with him inside it. Shepard comes face to face with her arch enemy.
Gibbs and the team try to find out who was responsible for an explosion that killed two NCIS agents.
A marine who supposedly froze to death turns up alive on Ducky's autopsy table. As the team investigates his case, a link to Gibbs's past emerges.
Tony faces the consequences of his deadly encounter with Michael Rivkin. The agents fly to Israel to present Tony's case to the head of Mossad.