1: Ziva's dramatic return shocks Tony.

2: The truth about Ziva's supposed death.

3: Tony and Ziva's emotional reunion.

4: The reunion fans have been waiting for.

5: Ziva's undercover mission explained.

6: Tony's journey to find Ziva.

7: The moment they finally reunite.

8: The impact of Ziva's return on the team.

9: What the future holds for Tony and Ziva.