Several years after desaster of his first universal vehicle Epouvante (Terror) engineer Robur, who managed to escape not only from the wreckage of unfortunate vehicle but also from the clutches of Head Inspector Strock built his new wonder - Epouvante II. This new vehicle was even faster stronger and thus more dangerous. Soon after new Epouvante appears at public Roburs began pursued again by various authorities. So Robur needed to armed his new vehicle with the best weapons available. He decided to do so, soon after First World War began. Several months later he repainted his Epouvante II with partial green camouflage color which remains on the vehicle until the end of war. Several months after the end of WWI Robur and his Epouvante II had vanished again never to be seen again.