The Strain: Season 4
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of The Strain Season 3.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Episode Guide
Season 4 Progress Shield
The Worm Turns
Jul 16, 2017
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 wh
The Blood Tax
Jul 23, 2017
Imprisoned as a subject in a strigoi breeding program, Dutch is desperate to escape and find Setrakian. Gus recruits his cousin for the inside job that will put his gang at the top
One Shot
Jul 30, 2017
Quinlan and Fet discover that stealing a nuclear warhead isn’t easy when they encounter an unexpected enemy. Eph and Alex concoct a new weapon to use against the strigoi. Frustrate
New Horizons
Aug 6, 2017
Dutch is forced to make a deal with Desai, while she plots to escape a strigoi breeding facility; Eph and Alex seek to uncover the dark secrets behind the Partnership's new plan; G
Belly of the Beast
Aug 13, 2017
Fet and Quinlan track a convoy carrying their prized nuclear weapon; Eph and Alex search for clues to uncover the Master's plan for the fate of the human race; a familiar enemy tra
Tainted Love
Aug 20, 2017
Fet and Quinlan must figure out how to get the nuclear bomb back to New York, while a desperate Eichhorst draws near; love-struck Zack tries to learn more about his new crush, but
Ouroboros
Aug 27, 2017
With his health failing, Setrakian ignores Eph's warnings and pushes himself to the limit in his quest for victory and revenge; Fet and Quinlan race back to Manhattan, while the Ma
Extraction
Sep 3, 2017
Reeling from loss, the heroes regroup; the heroes devise a new plan to track the Master through human collaborators, beginning at the blood farm with someone Dutch knows all too we
The Traitor
Sep 10, 2017
An unexpected guest brings old conflicts to the surface, dividing the heroes and threatening the group's trust; with questionable new intelligence in hand, the group launches a mak
The Last Stand
Sep 17, 2017
In the series finale, Quinlan devises a desperate plan, but the costs are enormous. Eph wrestles with his conscience, Fet undertakes a suicide mission, and Dutch and Gus dig in for