Alice is a young girl who opposes the construction of a nuclear power plant initiated by her deputy father. It is then that a strange Visitor takes them to 2555, a Future devastated by the explosion of the power plant. For the Visitor, the death of the deputy is the simplest solution to avoid catastrophe. But time is running out! A Future Police hunts them down to prevent any temporal modification. Alice will have to do the impossible: save her father and save the world.