Leave No Trace is the fourth episode of NCIS Season 20 and the 439th episode of the entire NCIS series.
Synopsis
When a Petty Officer is found dead in a campsite, the NCIS team investigate and find themselves working with an agent who's from the National Park Service Law Enforcement Rangers or United States Park Rangers and also an ex-boyfriend of Knight's.
Prologue
Act One
Knight after meeting her ex once again.
Act Two
Act Three
Act Four
Act Five
Major Events
- It's revealed that three months have passed since the events of A Family Matter (episode).
Cast
Series Regular
| Name | Portrayed by | Role |
|---|---|---|
| Timothy McGee | Sean Murray | Senior Agent for the NCIS Major Case Response Team. |
| Nicholas Torres | Wilmer Valderrama | Special Agent for the NCIS Major Case Response Team. |
| James Palmer | Brian Dietzen | Chief Medical Examiner for the NCIS Major Case Response Team. |
| Kasie Hines | Diona Reasonover | NCIS Forensic Specialist. |
| Jessica Knight | Katrina Law | NCIS Special Agent. |
| Donald Mallard | David McCallum | NCIS Historian. |
| Leon Vance | Rocky Carroll | NCIS Director. |
| Alden Parker | Gary Cole | NCIS Special Agent in Charge of the NCIS Case Response Team. |
Guest Cast
| Name | Portrayed by | Role |
|---|---|---|
| Gage Winchester | Caleb Alexander Smith | NPSISB agent and also an ex-boyfriend of NCIS Special Agent Jessica Knight. |
| Greg Patrick Walsh | Norman Lehnert | |
| Carl (Leave No Trace) | Michael Petrone | Camping guide. |
| Maxine Lautner | Nicola Posener | AKA "Max". |
| Eye Roll Girl | Tiffany Dion |