'King' Sombra keeps coming back from the dead and the only way to get rid of him is to make a deal. Will the newest princess be able to handle the deal?

After an eventful night, Twilight becomes pregnant with Big Macintosh foal, and Applejack is not happy. And she becomes even more angry when Big Mac goes to live with Twilight. Will the ponies fall in love, or will Applejack break them apart.