The Discovery Channel HD (Pacific)

George Poveromo fishes off Key Largo, Florida Keys.

Dan Cabela travels to Spain and France to learn more about chamois, a goat-antelope species steeped in history. Local development, conservation, and brown bear research are funded by regulated hunting, which has helped revitalize the chamois population.

Parker drops the hammer as he tries to stop his gold slide. Rick makes a discovery that could end his Vegas Valley dreams. Kevin hires a new free agent and makes a big score at his new Sphinx Cut.

A rundown nature park is full of strange secrets and connections; futuristic machines are the forgotten result of a plan to modernize American transit; a subterranean town serves as a refuge in the Wild West.

A brewery in the Pacific Northwest sustains prospectors during the Gold Rush; a Wyoming mining settlement descends into lawlessness; a murder in a small Mississippi town sparks a revolution.

A labor strike in an Arizona mining town ends in a mass kidnapping and deportation; a unique homesteading community gets its start in the Old West; a leaning Carolina lighthouse becomes part of Civil War history.

The remains of Idaho's nuclear industry mark a new era of American history; a distillery in rural Kentucky revolutionizes liquor; a New England settlement prospers despite prejudice; subterranean chambers produce many of the nation's monuments.

Forgotten soldiers of the Old West guard a fort at the southern border.

A military base trains soldiers in modern warfare to help defeat the Nazis; a suburban basement becomes a major cog in the Detroit bootlegging scene; a brave woman leads a labor union against organized crime.

Three young survivalists test their skills in the coastal rainforest of Ecuador, where they risk their lives scaling a massive rock cliff to forage for food.

For the first time, two teams of international survivalists converge in South Africa for the ultimate challenge -- USA versus the World.

After surviving a 14-day fan challenge, three survivalists attempt to endure 21 days in the rainy, mosquito-infested Belizean jungle; one is forced to leave due to a family emergency.

After surviving a near-fatal fall, an equestrian stunt rider attempts to endure 21 days in Colombia; when she and her partner fail to find food, they must grapple with the harsh possibility of starvation.