Where can I watch “The Flash” Season 1 Episode 3 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 “Watching the Detectives”?

Watching earlier episodes in season 1 helps you follow the plot and character arcs leading into this episode.

Watch The Flash Season 1 Episode 3 Online

“Watching the Detectives” — Watch "The Flash" Season 1 Episode 3 online in HD for free. Check streaming providers, cast, and episode details.

Oct 18, 1990 Season 1 Episode 3 48 min TV-PG

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The Flash Season 1

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Season 1 Episode 3 — Aired on Oct 18, 1990 • runs about 48 minutes.

Directed by Gus Trikonis.

Written by Howard Chaykin, John Francis Moore.

Notable cast/guest names in this episode include John Wesley Shipp, Amanda Pays, Alex Désert.

This page includes 3 official still(s) (when available) plus legal availability links.

Looking for “watch The Flash Season 1 Episode 3 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

The corrupt District Attorney Thomas Castillo hires a private eye named Megan Lockhart to find out the Flash's identity. He then blackmails Barry to work for him, or he'll expose his secret.