American Sentinels #4

While on a mission to infiltrate a German prison camp, the American Sentinels encounter strange advance weapons used to prevent intruders from entering the prison camp. Once inside the prison camp, the American Sentinels battle hellish mechanical monsters. If that is not enough, the American Sentinels have to face deadly traps while trying to infiltrate a hidden German Bunker. How successful will they be in their endeavors?