A 12-year-old boy turns up at one of the bridges on his own.

Officers are forced to close the bridge when it's stormed by dozens of asylum seekers. Meanwhile at the Columbia Solidarity, officers are suspicious about the contents of bags of sweets.

Officers are on the lookout for day-trippers trying to smuggle prescription pills back into America. A suspected courier for a cartel is questioned on she tried to smuggle $50,000 in cash out of the country.