A passenger arriving from Cairo has brought some extra carry-ons that interest officers; an American fashion designer returning from Paris fails to declare nearly $20,000 worth of luxury goods; a bag of snails from West Africa raises suspicions.

Officers grow suspicious of a traveler who is about to board his second flight within 24 hours to and from Canada. After closer inspection, a traveler claiming to have arrived in the U.S. for a solo vacation appears to have lied on his visa application.

A Scottish teenager claims that he's come to meet his girlfriend from a gaming website; when a couple arrives with a large amount of cash split into bundles, officers dig deeper and see that the man is under investigation by the FBI.