Where can I watch “Flash” Season 9 Episode 1 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 “Un jour sans fin”?

Watching earlier episodes in season 9 helps you follow the plot and character arcs leading into this episode.

Watch Flash Season 9 Episode 1 Online

“Un jour sans fin” — Watch "Flash" Season 9 Episode 1 online in HD for free. Check streaming providers, cast, and episode details.

Feb 8, 2023 Season 9 Episode 1 43 min G

8.1 ★ ★ ★ ★ ★

9 votes

Flash Season 9

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Where can I watch "Un jour sans fin" online?

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Season 9 Episode 1 — Aired on Feb 8, 2023 • runs about 43 minutes.

Directed by Vanessa Parise.

Written by Thomas Pound, Sarah Tarkoff.

Notable cast/guest names in this episode include Grant Gustin, Candice Patton, Danielle Panabaker, Danielle Nicolet.

This page includes 6 official still(s) (when available) plus legal availability links.

Looking for “watch Flash Season 9 Episode 1 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Barry crée un carnet de cartes pour le guider lui et Iris tout au long de leur avenir afin de la protéger, mais les résultats ne sont pas ceux auxquels il s'attendait, et au lieu de cela, ils revivent le même jour encore et encore. Joe a un tête-à-tête avec Cécile. Un nouveau grand méchant est présenté à la Team Flash et amis et ennemis, anciens et nouveaux, commencent à revenir sur Central City.