Twilight learns that the other alicorns have mysteriously disappeared and she is now the last one in the world. Determine to find out what happened to the others, she goes in search of them on an amazing, magical adventure.

CHS is having a talent show, and the girls are eager to join. But then the human Sunset Shimmer suddenly appears. They try to befriend her, but she's shy and reserved, and seems to be hiding something magic. Is she evil like her counterpart once was?