CBP Nogales busts a man internally smuggling fentanyl from Mexico; HSI delves into the dark web to stop a deadly party drug linked to overdoses.

CBP New York discovers priceless shipments of looted ancient artifacts. CBP Newark intercepts stolen luxury cars headed for the overseas black market.

CBP finds multiple doses of lethal fentanyl hidden within passenger cars, and CBP Newark searches for an illegal stowaway onboard a cargo ship.