To Catch a Smuggler Season 9 Episode 6 No Rest for the Wicked

Homeland Security Investigations in San Diego tracks a suspicious vehicle for 48 hours, leading them to a stash house. Customs and Border Protection meticulously screens outbound travelers at Dulles International Airport for undisclosed currency. In Calexico, CBP agents employ specialized tools to uncover well-concealed narcotics inside a vehicle's gas tank and oil pan.