Rule 91 (episode)

Rule 91 is the sixteenth and final episode of NCIS Season 18 and the 414th episode of the entire NCIS series. 
This episode also marks the final appearance of Emily Wickersham (Eleanor Bishop). 
==Synopsis==
As the NCIS team pursue a dangerous arms dealer, they're left shocked when Bishop is implicated in the leaking of highly classified NSA documents while Gibbs and Marcie realize the killer they've been tracking may be onto them.
==Prologue==
==Act One==
==Act Two==
==Act Three==
==Act Four==
==Act Five==
==Major Events==
*Bishop resigns from the team and NCIS.
*Rule 91 is revealed to be "Walk away and don't look back".
==Trivia==
*This is the final episode to feature Eleanor Bishop to date, excluding archive footage in the next episode, The Stories We Leave Behind and A Thousand Yards.
==Cast==
===Series Regulars===
Name 	Portrayed by 	Role
Leroy Jethro Gibbs	Mark Harmon 	Ex Special Agent Assigned to NCIS Major Case Response team. (Indefinitely Suspended)
Timothy McGee 	Sean Murray 	Senior Agent for the NCIS Major Case Response Team. Currently in charge.
Eleanor Bishop 	Emily Wickersham 	Special Agent for the NCIS Major Case Response Team. Resigns to work undercover with Odette Malone.
Nicholas Torres 	Wilmer Valderrama	Special Agent for the NCIS Major Case Response Team.
James Palmer 	Brian Dietzen 	Chief Medical Examiner for the Major Case Response Team.
Kasie Hines 	Diona Reasonover 	NCIS Forensic Specialist.
Leon Vance 	Rocky Carroll 	Director of NCIS.
Donald Mallard 	David McCallum 	NCIS Historian. Despite being credited, McCallum doesn't appear in this episode.
===Recurring Cast===
Name 	Portrayed by 	Role
Marcie Warren 	Pam Dawber 	Journalist.
Jessica Knight	Katrina Law 	NCIS REACT Special Agent.
Odette Malone 	Elayn J. Taylor	An old friend of Ziva's. Planning on leading an undercover operation with Bishop.
===Guest Cast===
Name 	Portrayed by 	Role
Afrim Murati	Rafael Petardi 	
Ronda Ellis 	Donzaleigh Abernathy	NSA Deputy Director.
  v—[ e]—dNCIS Season 18
♦ Sturgeon Season (episode) ♦ Everything Starts Somewhere (episode) ♦ Blood and Treasure (episode) ♦ Sunburn (episode) ♦ Head of the Snake (NCIS episode) ♦ 1mm (episode) ♦ The First Day (episode) ♦ True Believer (episode) ♦ Winter Chill (episode) ♦ Watchdog (episode) ♦ Gut Punch (episode) ♦ Sangre (episode) ♦ Misconduct (episode) ♦ Unseen Improvements (episode) ♦ Blown Away (episode) ♦ Rule 91 (episode)
Category:NCIS Episodes
Category:NCIS Season 18 Episodes
Category:NCIS Season Finale Episodes
Category:NCIS Episodes directed by Diana C. Valentine
Category:NCIS Episodes written by David J. North
Category:NCIS Episodes written by Brendan Fehily
Category:NCIS Episodes focusing on Eleanor Bishop