Following in the footsteps of her parents, supernatural being, Luna Balloona, knows that after graduation she will be expected to travel from her planet to save someone on Earth. But she didn't expect to be given an assignment before then.

Luna panics, not sure she is ready for the responsibility.

Dressed in her special cape and wearing her wristband, Luna travels to Earth. What she doesn't expect is that her mission to save a boy from a bully will result in something much more important and exciting.