TV Guide National Geographic Channel Tuesday

Footage from World War II is examined to reveal the actions of the Mighty Eighth Air Force, which helped to defeat Nazi forces in Germany.

The true story of one of the darkest crimes on the high seas, the sinking of the MV Lucona and its crew, all to claim a massive insurance payout.

The team examines some of the largest and most significant wrecks in the world by delving into the ocean's waters with the help of the latest technology.

Experts take a close look at long-lost ships on the ocean's floor to learn new details about the California and Klondike gold rushes.

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.

Exploration is key to surviving the harsh arctic elements for Alaska's Next Generation.

Sub-zero temperatures test the abilities of Alaskans attempting to survive and thrive.

Record-breaking cold forces the next generation of Alaskans to prepare for a long winter.

The next generation of Alaskans, who seek to live a subsistence lifestyle, is tested by Mother Nature via a variety of threats and challenges.

Alaskans learn to use their harsh surroundings to their advantage in order to survive.

To ensure their survival, Alaskans must use skill and limited resources.

With the summer sun high in the sky, Alaskans fight for their survival while trying to savor the brief warm season; Jessie hikes & rafts his way to new grounds.

As life blooms during the arctic summer, Alaskans face new challenges in their efforts to seize opportunities to harvest critical resources.

Alaskans capitalize on the warm season's daylight by reaping seasonal harvests, completing vital tasks, and learning about their environments.

Alaskans must overcome rising waters in order to capitalize on spring's offerings.

With spring in full effect across the Arctic, residents of Alaska must seize seasonal opportunities; Sue Aikens sets out to hunt small game but must be wary.

With the waterways open, Alaskans navigate rivers for key resources; with enhanced content.

The homesteaders take advantage of the conditions during deep winter.

Native Alaskans try to increase their chances of survival by passing down family traditions.

With the waterways open, Alaskans navigate rivers for key resources; with enhanced content.

Bjoern finds himself in a tough situation when a double accident forces him to ask his rivals for help; Thord tries to rescue a 14-ton tractor.

Exploration is key to surviving the harsh arctic elements for Alaska's Next Generation.

Sub-zero temperatures test the abilities of Alaskans attempting to survive and thrive.

Record-breaking cold forces the next generation of Alaskans to prepare for a long winter.

The next generation of Alaskans, who seek to live a subsistence lifestyle, is tested by Mother Nature via a variety of threats and challenges.

Alaskans learn to use their harsh surroundings to their advantage in order to survive.