What would you do if a time machine that opens a portal to the year 881 were at your disposal? Would you take a selfie with Oleg the Wise? But Igor Tuchin has far grander plans! He wants to help the prince train a powerful regular army, defeat the Khazars, begin industrialization, and elevate his ancestral land into great powers! He isn’t alone—he has his friends, comrades-in-arms. Four companions, posing as sorcerers, begin a difficult “progressor” task: to gather scattered lands into a single kingdom and “program” Rus’ for prosperity and leadership!