A man carrying four kilos of cocaine refuses to divulge the recipient of the package, while a young man's story shrouds a secret that the team struggles to understand.

When customs officers confront two suspected smugglers arriving from Guyana they must use their skills to uncover cocaine in what turns out to be two very different places.

CBP's target team discovers a package containing engine pistons. When the weights of each piston begin to differ drastically, the officers decide to drill for drugs, leading them to a heroin trafficker in D.C.

After CBP officers search bags, they discover cocaine in the lining of some coats. In the mail room, Officer Boris identifies a package containing a photo album and half a pound of heroin worth around $13,000.

When an 18-year-old trying to smuggle cocaine in the lining of his suitcase is selected for a random baggage search, CBP officers find the narcotic seeping through cracks in his suitcase. Now they work to get him to cooperate and start naming names.