Where can I watch “Threshold” Season 1 Episode 12 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).

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

Watch Threshold Season 1 Episode 12 Online

“Vigilante” — Watch "Threshold" Season 1 Episode 12 online in HD for free. Check streaming providers, cast, and episode details.

Jan 25, 2006 Season 1 Episode 12 41 min

5.5 ★ ★ ★ ★ ★

6 votes

Threshold Season 1

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Season 1 Episode 12 — Aired on Jan 25, 2006 • runs about 41 minutes.

Directed by John F. Showalter.

Written by Michael Sussman.

Notable cast/guest names in this episode include Carla Gugino, Brian Van Holt, Brent Spiner, Rob Benedict.

This page includes 1 official still(s) (when available) plus legal availability links.

Looking for “watch Threshold Season 1 Episode 12 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

When a number of infectees and seemingly innocent people are killed, it becomes apparent that someone is going after people affected by the alien signal, and is locating them via their heightened brain waves. How is the killer linked to Bighorn crewman Manning, and does his method of finding his victims mean that Molly, Cavennaugh or Lucas could be next on his list?