Customs and Border Protection officers uncover 5,000 rounds of ammunition being smuggled across Hidalgo Bridge into Mexico; the Mexican drug cartels wage a bloody war for control of the most profitable smuggling routes into the United States.

Officers are stunned when they discover more than two million dollars of cocaine mixed in with gallons of household paint and bottles of beer; In Laredo, Texas, a teenager asks for asylum; a man carries something suspicious in his vehicle.

A Cuban woman crosses the bridge in the hopes of being granted political asylum in America; in Laredo, Texas, officers stop three students carrying something unusual in their car.