This is a rather old Disney movie, from what I recall, it had the looks of seventies movie. Anyway, this movie tells the story of two children, Tony and Tia, that live in an orphanage. They have very little memory of their past except for flashbacks of an accident at sea. The two also have extraordinary powers; they can levitate objects and communicate telepathically. They set out to discover their origins and are kidnapped by a very wealthy man who realizes their powers. When they manage to escape, they realize they must search for the Witch Mountain and find their people. They are helped in their journey by a cranky man driving an RV.
The adventures of two magical children continues, only this time they are teenagers. Wishing to return to life among the residents of earth, they enter a large city to mingle. Within their first few hours, the young man has a premonition that someone is going to fall. Following that feeling, he rescues a young man under hypnosis from falling off a three story building. The man doing the experimentation, Christopher Plummer, decides he must have the boy for experimentation and gives him a serum to sleep. Meanwhile, the young girl comes searching for her brother and finds no trace of him. In her wanderings, she rescues a group of small boys from older bullies. They take her to their hideout and promise to help find her brother. As her dreams grow worse, she realizes that time is running out for her brother.