In Montauban in 1944, Julien Dandieu in a surgeon in the local hospital. Frightened by the German army entering Montauban, he asks his friend Francois to drive his wife and his daughter in the back country village where Julien has an old castle. One week later, Julien decided to meet then for the week end, but the Germans are already occupying the village.

The surface of the Earth is under attack, thousands of people are killed in this unprovoked attacked. The cause, Princess Dragonmon and her army of monsters have decided to invade. Princess Dragonmon is an alien whose race has been hiding under us for centuries waiting to attack at the time is right. A doctor has been preparing for something like this and turns his assistant Rayma into the cyborg hero known as Inframan. Now only Inframan stands between the Earth and Princess Dragonmon but when a close friend is captured and brainwashed, can she be stopped with this inside man feeding her info?