Smiling, carefree parasprites now roam the gilded corridors of Canterlot Castle, and not a single pony can be found. Celestia and Luna have temporarily abandoned and quarantined the premises, staying elsewhere while they argue over the best method to go about removing the adorable trash that has infested their home. Unfortunately, parasprites are not the only intrusive thing that have now taken up a presence in the castle during the sisters' brief absence.

Inexplicably teleported in from the sheer amount of valuable possessions being left unguarded, the Norsemen have arrived.