In 1944, in the Belgian - German border, seven German soldiers survive an American attack in the front and lock themselves in a bunker to protect the position. Under siege by the enemy and with little ammunition, they decide to explore underground tunnels to seek supplies and find an escape route. While in the tunnel, weird things happen with the group.
Maybe not the strongest example of this sort of thing, but certainly a watchable entry into the "Supernatural shit happens in an underground Nazi bunker" subgenre which very clearly exists.
Final rating:½ - Had a lot that appealed to me, didnt quite work as a whole.