Discovery Channel HD

Matt chases a rare copy of the Declaration of Independence in a jam-packed hoard and digs through a 4,000-square-foot chicken coop for vintage motorcycles.

In Wyoming, officers come under fire trying to arrest a wanted man in his home.

In Indian River County, Florida, a shoplifting call turns into a deadly pursuit. In Sioux City, Iowa, police use high-tech tools to solve a love triangle murder.

A series of unsolved murders leaves Southern Florida terrorized. A new FBI agent makes it her mission to take down the gang responsible.

The security and customs services at the border of Sweden are on constant watch to stop illegal items entering the country. It's their job to detect crime.

In Rome, Customs confirms that a passenger is carrying well-hidden drugs in sauce packets.

In the Spanish port of Barcelona, Customs clears out a van loaded with disassembled cars, and in Brussels, a passenger arrives with improperly wrapped fish and insects.

In Madrid's main airport, Madrid-Barajas,5,000 security cameras help agents maintain security. Follow state security forces to discovery how they monitor Spain's borders.

In Madrid's main airport, Madrid-Barajas,5,000 security cameras help agents maintain security. Follow state security forces to discovery how they monitor Spain's borders.

In a house packed with oddities, Matt finds megalodon teeth, tribal masks and Civil War bullets. The team struggles to make the kitchen functional again.

At Barajas Airport, officers discover hidden compartments in two lamps. In Andalusia, the civil guard raids the homes of suspected drug traffickers.

In Andalusia, a random inspection exposes a driver with an outstanding arrest warrant. At the Port of Barcelona, a driver hasn't declared his cargo.

Good Samaritans rescue a police officer under attack, bystanders help a young victim of human trafficking.

A wild chase ensues after a woman steals a police cruiser, two off-duty officers have to abandon their date night to jump into action.

In Colorado, a driver opens fire and sparks a high-speed pursuit that ends with a standoff. In Ohio, a man ignites a fierce gun battle with police.

The FBI tracks a real-life hitman calling himself the real John Wick, who is shooting innocent men on the streets of Philadelphia.

A look at the daily challenges of the hard-working men and women in charge of the operations at some of the busiest harbors in Spain.

A look at the daily challenges of the hard-working men and women in charge of the operations at some of the busiest harbors in Spain.

At Barajas Airport, officers discover hidden compartments in two lamps. In Andalusia, the civil guard raids the homes of suspected drug traffickers.

In Colorado, a driver opens fire and sparks a high-speed pursuit that ends with a standoff. In Ohio, a man ignites a fierce gun battle with police.

The FBI tracks a real-life hitman calling himself the real John Wick, who is shooting innocent men on the streets of Philadelphia.

Good Samaritans rescue a police officer under attack, bystanders help a young victim of human trafficking.

A wild chase ensues after a woman steals a police cruiser, two off-duty officers have to abandon their date night to jump into action.

A look at the daily challenges of the hard-working men and women in charge of the operations at some of the busiest harbors in Spain.

A look at the daily challenges of the hard-working men and women in charge of the operations at some of the busiest harbors in Spain.

Watch Dual Survival as their hosts demonstrate survival skills in a variety of hypothetical scenarios in wilderness around the world.

In a house packed with oddities, Matt finds megalodon teeth, tribal masks and Civil War bullets. The team struggles to make the kitchen functional again.

In Amazon, Grady and Bill climb ancient trees and commune with animals to navigate through the jungle in search of a river that could lead them to salvation.

Stranded in the Zambezi River Basin, Grady and Bill are surrounded by Africa's fiercest.

Stranded in the Namib Desert of southern Africa, Grady and Bill rely on the resources of a broken down car for fire, shelter, and to signal for rescue.