Once Upon a Time is a transformation of Lost.
Brief summary of Lost, around 20 people are stranded on an island because of a plane crash. The island has mystical powers which allow one passenger to walk when he was in a wheelchair. The goal for the people on the island is get off the island and return home to their lives. And then there was polar bear.
Brief summary of Once Upon a Time, there was a curse that was used by the evil queen to take away the happiness of all fairy tale characters. The fairy tale characters were sent to a world that had no magic, this world was earth. The fairy tale characters do not know that they are stranded. A savior had the ability to break the curse but does not believe that the curse is real.
They both have aspect about people being stranded, the passengers on the island and the fairytale creatures on earth. This is a transformation because they have a similar aspect of being stranded but the way in which they go about escaping is different. The fairy tale characters do not know that they need to be saved while the people on the island are working collectively to get off the island. Once Upon a Time is a transformation of Lost because it shows a different form of being saved.