This was called Bring Your Parent To School Day, then I saw the Family Appreciation Day episode (I'm a new fan, it fell through the gaps). Hence the renaming.
Guardians come in many colours and personalities, protecting others or misusing their power. As Rainbow Dash finds Scootaloo alone after dark, it is her time to find her own place in the complicated network of protégés and protectors.
Rainbow Dash's foalhood is unknown to us. She never talks about it, the only mare who knows anything about Rainbow Dash's mysterious past is Fluttershy. One day she receives a letter from her parents that gets her thinking of her foalhood.
With her tragic past, Scootaloo has many reasons to have nightmares. After following Princess Luna’s advice and facing her fears, the nightmares ended—until now. What is the cause of Scootaloo’s final nightmare?
Rainbow Dash has raised Scootaloo well on her own. But Scootaloo wonders about one thing, a father. But when her real father comes knocking on the front door, Scootaloo realizes that Rainbow Dash is a better Gurdian then her actual father.