Code of Conduct
| Episode Number | 5 |
|---|---|
| Season | 7 |
| Aired | 2009-10-20 |
| Overview | When a Marine known for his practical jokes is found dead on Halloween Eve, the NCIS team discovers that the victim's "good-natured" pranks may have inspired ghoulish retribution. Meanwhile, Ziva tries to adjust to her new role on the team. |
| Runtime | 45 minutes |
| Absolute Number | 143 |
| Finale Type |