Six Alone veterans take on their biggest--and coldest--challenge yet when they are dropped on the frigid North Atlantic coast just days before the start of winter.

With no time to waste before brutal Labrador winter temperatures set in, the participants struggle to establish themselves in their harsh new environment.

Hard lessons shape the participants' strategies as they balance their immediate needs with an increasing risk of injury. The margin for error gets slimmer as Labrador's harsh environment diminishes their body heat.

The harsh Labrador environment has a profound effect on participants' mindset and strategies. The Atlantic Ocean threatens to take participants supplies, and their share of $500,000, out to sea.

Frost arrives and changes the landscape, creating new priorities for the participants. The competition wears on the survivalists, with the prospect of a $500,000 prize.

The participants near the halfway mark of the $500,000 competition just as mother nature turns up the dial on the unrelenting winter conditions.

The final three participants battle through Labrador's worst storms yet. With their bodies on the brink, and a $500,000 payday on the line, they must step up or tap out.

As day 50 looms, the final two participants are forced to react in order to stay in the game. To reach the finish line, they wrestle against life threatening winter conditions.

An inside look at History's new series ALONE: FROZEN that introduces the six ALONE veterans undertaking this extreme challenge.