Robert Keys

A C-47 transport plane, named the Corsair, makes a forced landing in the frozen wastes of Quebec, and the plane's pilot, Captain Dooley, must keep his men alive in deadly conditions while waiting for rescue.

With the Civil War about to begin, Southern saboteurs attack frontier railroad construction.

At the start of the Civil War, the soldiers manning Fort Laramie are split between Yanks and Confederates but the real threat is the warpath Sioux surrounding them all.