Drugs, humans, weapons and money can be hidden anywhere by anyone at any time, and nobody knows that better than the law enforcement officers who work on or near the border. Laredo narcotics officers raid a residence in a school zone after a confidential informant buys crack cocaine direct from a drug dealer's house.
For those rare occasions when human skills are insufficient, Customs and Border Protection (CBP) agents and local law enforcement officers turn to their friends in the animal world for some on-the-job help. In Rio Grande City, Archie, a CBP K-9, helps agents track a group of illegal immigrants spotted passing through.