Officers investigate an academic returning from the Dominican Republic with dead specimens; a tip comes in about a traveler running a massage parlor linked to sex trafficking. Drugs worth $1,000,000 are intercepted before leaving the United States.

Two UK women are questioned after one of them barely resembles her passport photo, and the officer suspects her documents are forged; a man returning home from an antique coin auction provides an officer with an ancient history lesson.

When a traveler tells an officer he doesn't remember the code to open his suitcase, the bolt cutters come out; K9 Magnus alerts to a strange odor coming from the floor of a plane that just arrived from the Dominican Republic.