The greatest friendship on earth is at risk when the constellation that powers Pup Academy fades out and humans no longer want dogs as best buds.

Spark explains her side of the story after leaving the Academy, but Corazon and Whiz soon find out it was all part of Professor Fitz's sinister plans.

Everyone thinks Spark is the Chosen One according to school prophecy. But since Spark spent her life as a stray, she's not used to special treatment.