A disillusioned Wehrmacht officer named Colonel Claus von Stauffenberg and his co-conspirators attempt to assassinate Adolf Hitler on 20 July 1944.A disillusioned Wehrmacht officer named Colonel Claus von Stauffenberg and his co-conspirators attempt to assassinate Adolf Hitler on 20 July 1944.A disillusioned Wehrmacht officer named Colonel Claus von Stauffenberg and his co-conspirators attempt to assassinate Adolf Hitler on 20 July 1944.