These Are Human Skulls So They Had to Belong to Somebody.. - S1.E4

CBP officers may have struck paydirt when at the Detroit Metropolitan Airport when they chat with a couple who are headed to Dubai who are carrying piles of undeclared cash and tell conflicting stories. A suitcase emitting a strange sound quickly empties out the terminal of Miami International Airport for an emergency evacuation. An officer at the San Francisco Mail Center makes a grisly discovery when he X-rays a box from China and is shocked by what he finds. At the Ysleta port of entry in El Paso, Texas, where one quarter of all illegal drugs entering the U.S. are seized, officers rip apart a sedan in search of its secrets, while a bag search prompts a deadly avian flu quarantine at the JFK airport in New York.