Doug and Tony are transported to 1836 and are immediately attacked by Mexican soldiers. The nearest shelter turns out to be the Alamo days before the Mexican Army will overrun it. Colonel Travis decides they are spies and imprisons them.

Landing in 1944 occupied France two days before D-Day, Doug is captured by the Germans and psychologically reprogrammed to hunt down and kill Tony who must keep their knowledge concerning the impending invasion from the Nazis.