Children Film Idea

My idea for the children's film is that there is an object lost in time. As the object is lost in time the great great granddaughter would follow up where her mother and the rest of her family left off to try and find the object by travelling through time looking everywhere she could and getting in many sticky situations and making lots of new friends from all around the world and different moments in time.
In the intro there would be a section showing how the object was lost in the first place and some of the different adventures the girls family have been through. it would then show the girl being told the story by her mother and telling her 'to never stop the search for magic, never give up hope.'