Sweetie Belle had always been scared of thunderstorms. But not as this scared when she finds something under her bed. But she is shocked to find out it wasn't what she had expected it to be.
It was supposed to be a normal day in Ponyville. But, as it is known, there are no normal days in Ponyville. Due to Twilight's failed expirement (another one), Fluttershy has to deal with a problem. Three of them, to be exact.
Twilight's head has been hurting ever since a fight she and Spike had. So when the pain of it all ends up forcing the two to finally confront this fight, it takes one moment between the two for them to both realize their mistakes.