If, by the will of fate, you find yourself in a foreign world, be careful, because no one has canceled the difference in mentalities. Another world is even worse than emigration. But what doesn't kill you makes you stronger. The subsequent knowledge of the development of technology becomes not only a blessing, but also a curse, attracting the attention of the powers that be. And his beloved wife with her infant child hung like chains on her feet. And around us there is a war, which historians will later call a world war. Having realized that progress is possible only on the basis of actually existing technologies and the existing qualifications of native specialists, Savva Kobchik not only patents things “from the future”, but also surrounds himself with enthusiasts who can only be “pollinated” with proven over time with ideas and to lead them away from dead-end decisions - they will do the rest themselves. For creating the first machine gun in this world on an automatic principle, Savva becomes a baron, but in no way one of his own among the local aristocracy, for whom he is an upstart, parvenu and nouveau riche. And having flown into the thick of political intrigue, he finds his salvation only at the front, at the very forefront. In an armored train designed by himself.