1: Tony and Ziva find an unexpected ally in former CIA agent G. Callen.

2: Their next ally comes in the form of tech genius Eric Beale.

3: NCIS director Leon Vance lends his support to the pair.

4: Tony and Ziva team up with forensic scientist Abby Sciuto.

5: The mysterious Hetty Lange joins forces with the group.

6: Fugitive turned informant Raymond Ainsley aids in their mission.

7: The team gets unexpected help from hacker Nell Jones.

8: CIA officer Sam Hanna proves to be a valuable ally.

9: Tony and Ziva's spinoff at Paramount is full of surprising partnerships and alliances.