SMERSH of time travelers

Not everything turns out the way the time travelers from the twenty-first century planned, but that's real life—it doesn't want to easily submit to any changes.
Thus, it will take some extra effort to bring the final result to the form... envisioned in the project, signed, and accepted for implementation.
Tentacles have already spread from California to England and Spain. Next up is France… And then suddenly the long-awaited meeting of the time travelers with their fellow traveler in the past, who has been brought, by someone's will, into the body of Napoleon. As the chronicles claim, conveying the impressions of the newcomers from the New World and Bonaparte himself at the moment of mutual recognition in simple words is impossible!