TV Guide National Geographic Channel Friday

The existence of Area 51 was denied by the U.S. government for more than a half century and only acknowledged in August 2013 in declassified CIA documents.

Detectives use DNA evidence to identify a victim of serial killer Larry Eyler, who was called the Interstate Killer and the Highway Killer.

Investigators attempt to identify a murder victim from Texas after 38 years.

DNA detectives attempt to identify a young female found dead in the desert.

DNA detectives attempt to identify a man who was crushed under ice in a railcar.

When a John Doe is found dead in an oil well in 2020 in Canton, Ohio, the DNA Doe Project uses genetic genealogy to identify the murder victim.

A 9-year-old boy's discovery that led to the uncovering of a pair of hominid skeletons in South Africa challenges assumptions about man's lineage.

A young CIA officer is kidnapped abroad, triggering a tense 24-hour standoff.

Air and Marine Operations chases a boat tossing cocaine overboard; Customs and Border Protection seizes pills from a pilot.

An explosives alert in baggage, mice threaten the safety of airfield taxiways and high winds make plane movements difficult at Toronto Airport.

Toronto Airport takes preparedness and safety seriously: mechanics, firefighters, and even a trainee bird-scaring dog are put to the test.

Spring break puts new pressure on the airport infrastructure, its staff and the very planes themselves.

Lightning interrupts vital maintenance on the airfield; a faulty 787 needs urgent repairs. Cargo needs to be re-loaded; two dogs travel in style.

Toronto Airport braces itself as two winter storms descend on North America, battering destination airports and leaving flights grounded at Pearson.

Toronto Airport security teams are on high alert as unwanted intruders infiltrate restricted areas across the airfield and inside the terminal.

A massive storm hits Toronto International Airport. Crews race to clear snow and move a jack-knifed Boeing 787 causing chaos at the departure gates.

Emergency at Toronto International as a plane crash lands; the resulting shut down sees flights cancelled and diverted, pushing teams to their limit.

A runway emergency, missing cargo, faulty brakes and wildlife on the runway, the fight to keep flights moving never stops.

Frozen planes, an injured flight attendant and a drunk trespasser keep the team on their toes as the big freeze hits Toronto International Airport.

Explore the extreme airport runways where landings push pilots to their limits.

Perilous roads worldwide reveal how travel can turn deadly in an instant.

A runway emergency, missing cargo, faulty brakes and wildlife on the runway, the fight to keep flights moving never stops.

Explore the extreme airport runways where landings push pilots to their limits.

Perilous roads worldwide reveal how travel can turn deadly in an instant.

Frozen planes, an injured flight attendant and a drunk trespasser keep the team on their toes as the big freeze hits Toronto International Airport.

Emergency at Toronto International as a plane crash lands; the resulting shut down sees flights cancelled and diverted, pushing teams to their limit.

A massive storm hits Toronto International Airport. Crews race to clear snow and move a jack-knifed Boeing 787 causing chaos at the departure gates.

Toronto Airport security teams are on high alert as unwanted intruders infiltrate restricted areas across the airfield and inside the terminal.