After the Black League fired their nukes, they fled into their bunkers. But, when they went off, the whole of Russia's underground bunker network disappeared... Only to reappear in a very different Russia.
After his death, Pyotr Wrangel wakes up as a Pegasus. He also find he is not alone, as Sergei Mosin, (the creator of the Mosin Nagant rifle) Sergey Markov, Mikhail Drozdovsky, and Maria Bochkareva end up as his companions.
After the start of the conversion war. A mysterious rainbow maned Pegasus mare shows up to give aid to humanity. However, no one knows why, but one man is determined to find out.