After Rainbow Dash escapes from Chucky’s henchmen who were about to destroy her, she meets Derpy. She has volunteered to take care of Scootaloo, the daughter of their parents, who has left in a hurry to go on a business trip. The henchmen have continued their search for Rainbow Dash, whom Scootaloo decided to name her as Dash. She does not want to play because Rainbow Flash told her not to play when she was young, but she eventually starts to do so with Derpy and Scootaloo. Later, the henchmen try to destroy her while she is with Derpy and Scootaloo at a store, but she outsmarts them.
When the FBI finds out that Dash is living with Derpy, they take her back. She escapes and finds Derpy and Scootaloo again. Chucky returns and attempts to subdue her, but is outsmarted, captured, and imprisoned. Meanwhile, Scootaloo’s parents flight is cancelled and they’re forced to come back home.
The FBI agents try to take Dash back, but they decide to let her choose with whom she wants to live. She chooses Derpy and Scootaloo, although she gives Rainbow Flash a hug. Scootaloo’s parents returns and is very upset with Derpy for what had happened, but Scootaloo convinces them that Derpy is good and they end up becoming friends.