Home, the long way round [1]

Maddie is walking around into a new town named Leadworth as she was away from her old home. After she knew that she was adopted. She just packed her suitcase and left a note as she ran away to a new town. Then on that day she met the Doctor, Amy and Rory. Of course with aliens and saving the world. Then 2 years later he's back and she agreed to go with him as well as Amy.