Where can I watch “The Strain” Season 4 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 “The Worm Turns”?

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

Watch The Strain Season 4 Episode 1 Online

“The Worm Turns” — Watch "The Strain" Season 4 Episode 1 online in HD for free. Check streaming providers, cast, and episode details.

Jul 16, 2017 Season 4 Episode 1 44 min TV-MA

7.3 ★ ★ ★ ★ ★

18 votes

The Strain Season 4

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Season 4 Episode 1 — Aired on Jul 16, 2017 • runs about 44 minutes.

Directed by J. Miles Dale.

Notable cast/guest names in this episode include Corey Stoll, Kevin Durand, Miguel Gómez, David Bradley.

This page includes 4 official still(s) (when available) plus legal availability links.

Looking for “watch The Strain Season 4 Episode 1 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Out of the ashes of humanity’s nuclear war, Night Eternal has begun. Haunted by the atrocities committed by his son, Eph abandons NYC for Philadelphia. His solitude is cut short when he encounters new fighters who rekindle his drive to fight back. Tasked by Setrakian, Fet and Quinlan search for a new means of stopping the Master.