Pinkie and Rainbow got together, and despite the two not getting together for the best possible reasons, they're happy together. But, what about the other Pinkie Pie and Rainbow Dash? The ones who live on the other side of the mirror?

Pinkie has something she would like to show Rainbow Dash, as well as something to tell her. It dosen't go as planned, Pinkie get's upset, and Dash has to figure out a way to make Pinkie happy again.