Where can I watch “Les Mystères de l'Ouest” Season 4 Episode 18 online?

This page provides episode info and a legal-only guide. It does not host streams or downloads. Check official platforms and licensed services for availability in your region (US first).

Do I need to watch earlier episodes before “La Nuit du Janus”?

Watching earlier episodes in season 4 helps you follow the plot and character arcs leading into this episode.

Watch Les Mystères de l'Ouest Season 4 Episode 18 Online

“La Nuit du Janus” — Watch "Les Mystères de l'Ouest" Season 4 Episode 18 online in HD for free. Check streaming providers, cast, and episode details.

Feb 14, 1969 Season 4 Episode 18 TV-PG

6.0 ★ ★ ★ ★ ★

1 votes

Les Mystères de l'Ouest Season 4

← Back TV Series

Where can I watch "La Nuit du Janus" online?

You can watch it through the button below, and it is free.

▶ Watch This Episode Now

Season 4 Episode 18 — Aired on Feb 14, 1969.

Directed by Irving J. Moore.

Written by Leonard Katzman.

Notable cast/guest names in this episode include Robert Conrad, Ross Martin.

This page includes 2 official still(s) (when available) plus legal availability links.

Looking for “watch Les Mystères de l'Ouest Season 4 Episode 18 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

West et Pike cherchent à démasquer un traître au sein des services secrets. Un indice caché au sein d’une partition musicale codée leur a été fourni par un de leurs collègues, juste avant que ce dernier ne soit abattu. Les deux agents se rendent à l’académie des services secrets de Denver, où sont conçus tous leurs gadgets, et où des spécialistes vont tenter de décoder la partition.