A farmer drains his sodden property in the Dutch flatlands, uncovering secret tunnels that run the length of the Atlantic Wall, a system of bunkers and fortifications built during the Second World War by the Nazies. Investigating, he accidentally unleashes the dormant Zombots, a terrifying Nazi super soldier compiled of dead body parts and bizarre mechanical apparatuses. As the Zombots rise up from the tunnels and beaches, the farmer, along with his wife, are violently killed. His two small children must find a way to escape their tiny island and warn the rest of the world.