The Aleutian Portal

A Russian cargo ship sinks in the shallow waters of the Bering Strait, and somehow vanishes without a trace.

In the Colorado Plateau Desert, a cowboy follows a river of sand into an undiscovered ruin.

A tunnel-boring operation between the Alaskan and Siberian peninsulas is stalled when its largest burrowing machine disappears into an abyss.

Sam Reilly leads a search and rescue mission for the missing ship and crew. What should be a simple operation quickly turns into something much more danger...