At Equestria’s end, the newly christened Zephyr Heights begins wiping away the city's past, starting with the city's old airship station. Whether ponies want it or not.

Pinkie Pie devises her best plan ever after a chance meeting with Trixie and Starlight. It has the unintended side effect of pressing Trixie on a harsh journey of self-discovery.

The bugbear is free. Tartarus isn't secure. Special Agent Sweetie Drops of S.M.I.L.E. has run out of time solving both of these problems, and now she must answer to Princess Celestia.

A human wakes up in place of Princess Celestia and wants absolutely nothing to do with the hijinks that always ensues from such a phenomenon. Celestia, wholeheartedly agrees.