Name of 1st episode is Truth or Consequences:
Team Gibbs is involved in a drug case within the Navy. Two bodies are at the morgue and a Petty Officer is in critical condition. It appears they were unaware that they ingested the drug.
While NCIS is in the middle of the investigation, Specials Agents DiNozzo and McGee "interview" the replacement to the former liaison officer with the Mossad, Ziva David. The DEA agent Emily Garver and the police officer Heather Pearson is interviewed by Tim and Tony, but will they appeal to the one who makes the final decision, Gibbs?
Ziva is not forgotten. Since her return to Mossad, she is being watched by NCIS. But 3 weeks after her Aliyah, the observation no longer provides intel about her. Ziva seems to have disappeared... but special agent Chad Dunham, undercover in Moslem countries, may have spotted her.
Link:
link