The Calamitous Black Devils is set during World War II and follows the exploits of an elite brigade of Army operatives-the Black Devils. The team is composed of mostly American and Canadian soldiers, joined by MI-6 and the Russian Night Witches. Their mission is to stop a top secret Nazi plot to harness a multidimensional gateway that will allow an Ancient One, Anan-Zaha, to cross over into our world. But while battling the Nazi forces, the team is pulled into another world against their will. They must fight their way through a universe at war, trying to make their way back home.