World War Two, 1944. The tide of war has changed.

The Axis powers have taken control of Houska Castle in Czechoslovakia, rumored to house a gateway to Hell. The Allies put together a group of commandos led by decorated soldier, Lionel Sweeney, to liberate the castle.

Together with an apprentice Rabbinical student and the protogé of an World War One saboteur, will the crew be able to stop the Axis from harnessing the evil needed to win the war and change the course of history?