The NYPD recovered more than $30 million worth of fetanyl in Queens.
They found 64 kilograms of it enough for about 32 million lethal doses.
Investigators also found several other narcotics during their search at an apartment building on 120th Street in Kew Gardens last month.
Rogelio Alvarado-Robles and Blanca Flores-Solis were arrested.
Two others were taken into custody in a related bust.
In that case, police discovered another 25 kilos of fentanyl and heroin in a vehicle in the Bronx.
All four are facing a slew of drug charges.