When two sisters are pulled over for making an unsafe lane change, officers discover they have an illicit stash that can't cross the border; a Mexican couple attempts to bring a bag of foul-smelling insects for a special recipe.

When a trailer full of sea salt shows up at the bridge, officers decide to inspect it; the bags do contain a crystalline substance and it's an illicit one; during an inspection of a U.S. citizen, something illegal rolls out of his pocket.