This story is an alternate turn of events in the episodes Cutie Re-mark Parts 1 and 2

Starlight Glimmer's plan was to get revenge on the mane six by going back in time to stop Rainbow Dash from performing her Rainboom as a filly. This would cause a ripple effect and prevent the mane six from ever becoming friends, which meant they would never have ruined her plans for "Our Town." But when Starlight performed her time spell, she somehow screwed it up, not only turning herself into a foal but had gone further back in time than she intended. Now as a foal, she will need help from the baby versions of the mane six to help her fix her mistakes and get back to the future.

Editor Superpinkbrony12

Cover artist Pridark