Kishin Heidan

In October 1941, during the Second World War, an alien invasion emerges as an unexpected threat. While global conflicts persist between the Axis and Allies, the Kishin Corps operate giant Geo-Armor Robots, built from a captured alien machine, to prevent Earth's destruction. A teenager named Taishi becomes central to a conflict involving a black attaché case given to him by his father, Professor Tokamura. The case holds a control device for one of the robots, making it a target for the Japanese Kanto Army, the aliens, and the Kishin Corps. Amid spies, military forces, and extraterrestrial threats, Taishi faces a dangerous journey if he is to survive.