Rainbow Dash had been living happily with her new adopted sister, Scootaloo. One day however she recieves a visitor from the Foal Protection Services, who tells her that Scootaloo has a twin brother who had been separated at birth when he got adopted. However it would later be revealed that the stallion who had adopted Scootaloo’s twin had merely done it for the money; he had abused the young colt to the point that when police found him he, he was immensely skinny and malnourished. Rainbow Dash is left with a choice adopt the mentally troubled colt.