Stay off the path that is twisted and worn, where stalks all grow tattered and torn. For all those who do stay lost and forlorn, singing forever the Rhyme of the Corn...
Sweetie Derelle, the alternate reality Sweetie Belle, has arrived in Equestria to save everyone. That includes driving a bus at high speed through Canterlot to make sure it doesn't explode. Also into Canterlot Castle. Specifically Celestia's Bedroom.
Scootaloo really wants to talk with Rainbow Dash, but Rainbow, caught up in her own happenings, doesn't make time for Scootaloo. This leads to Rainbow and Applejack talking about the meaning of sisterhood.
After everything in Equestria has come to an end, the alicorns remain. The only things Princess Flurry Heart has left are her mother and her memories. She remembers her father, a talk she had with the other princesses, and the meaning of immortality.