Rainbow Dash and a mystery armored pony are going to find shelter from a disaster that is going to happen, after they find a shelter a bomb landed and destroyed ponyville. The mystery pony named Renold explains this has to do something with the powerful gemstone "Heartstone", which is getting her and her friends to go to crazy adventures to try and find the secrets of the Heartstone, and with the help of the Heartstone research team and their technology, this will be intresting. This story might include a bit of blood, and there might be some sad parts.