Border Security: America's Front Line

Border Security: America's Front Line

At O'Hare International, a returning American's bananas cause a slip-up in secondary; a mother covers for her kid at Detroit's Ambassador Bridge; a car search is brought to a head in Washington State.

3:00 AM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

A Ukrainian traveler may split after divorcing her husband; a suspicious package is sent to the lab for narcotics testing.

3:00 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

Officers search for a fugitive in Washington State; a cook is questioned on his way to Las Vegas; a canine flags several packages in Chicago; x-rays discover anomalies in Port Huron cargo.

3:30 AM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

A Canadian is interviewed after officers find pictures of pot plants on his phone; a canine team detects marijuana on a couple.

3:30 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

An officer's expertise in body language pays off; a German rock band in Detroit; a hole in a traveler's story.

4:00 AM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

A conductor arrives to lead a symphony orchestra; a drug dealer tries to enter the United States.

4:00 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

A Chicago canine unit discovers smugglers; officers enter a high-speed chase in Port Huron; a traveler triggers radiation alarms; bullets in Blaine, Washington.

4:30 AM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

CBP worries a man from Nicaragua may not leave the U.S.; a traveler's plan to start an e-vape business may go up in smoke.

4:30 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

In the Detroit airport, a family traveling from the UK, may need to corroborate their story. Also, a tip from authorities puts officers at the Chicago International Mail facility on high alert.

5:00 AM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

Border officers stop a young British visitor meeting an American cyber pal at Detroit Metro Airport, and a Chinese traveler is caught using his mobile phone in a secondary inspection in Chicago.

5:30 AM on DTOUR

Select your lineup for TV local listings