Time Shift.

It all started when Annie found a strange man in her garden shed, she looked after him when he just dissapered. She never saw the strange man until a few weeks later when he started working as a teacher at school, but like he did before, he suddenly seemed to leave without a trace, he kept appearing all over the place but never seemed to stay long. Annie soon finds out the mystery mans real identity and gets wrapped up in a mission of his. Time portals have been opening up all over England, each leading to a different time, people can go in and go out - which started to prove fatal when Julius Ceaser and a legion of troops was found marching through Essex, and Kind Henry the eighth scouring Norfolk for a new wife. Annie and The Doctor must stop the spread of these time shift portals before time is well and truely shifted for good.