Bill Voorhees

For millennia, calendars have added an extra day every four years. In doing so, they violated the ancient Mayan calendar. Now we are in the 13th month of the 13th year of the new millennium, and the few who survive will battle a world of demons. (imdb)

Sergeant Lance Dawson's tank gets stranded behind enemy lines in summery Ardennes. The crew splits up with couple of guys left to guard the tank and Dawson and few others go scouting. They meet a nun in distress and decide to save orphans before the Nazis kill them. (shamelesspile.blogspot.com.br)