Wallflower only erased the memories of the humans at Canterlot High. She completely overlooked the animals. When Sunset Shimmer shows up at the beach and is shunned by her friends, Spike comes to her aid. With the help of the others who haven't forgotten about Sunset Shimmer, they'll need to get to solve the mystery of the missing memories.
(Totally not inspired by the TV continuation of Disney's "Aladdin". Especially not the episode called "Sandswitch".)
Edit: Featured 2/19/2018, 3:30 PM and 9:30 PM
Featured 2/22/2018, 10:10 AM
Featured 3/3/2018, 6:10 PM
Featured 4/13/2018, 6:40 PM
Featured 4/14/2018, 6:10 PM