The search term refers to the Polish title for the horror-thriller series " The Strain " . Season 4, Episode 8 is titled " Extraction " . Episode Overview: " Extraction "
The team executes a raid on the "blood farm" facility where Dutch was previously held. Wirus S04E0841:37 Min
Gus’s gang provides backup for the raid, and Quinlan barely survives a brutal face-off with a "mongrel" (mutated strigoi). The search term refers to the Polish title
This episode serves as a regrouping point for the survivors following the death of Professor Abraham Setrakian. Episode 8 - Entertainment Weekly
The Strain recap: Season 4, Episode 8 - Entertainment Weekly