Class is officially in session after the wise D.O.G. recruits a new group of canine classmates. Elsewhere, young human Morgan learns about the academy.

When the pups share stories about their owners, Spark struggles with her shortcomings. But can she fake it to impress her professors and classmates?

Pup Academy celebrates a special day of student reviews, Charlie shares a meaningful gift with Morgan, and King's dark past comes to light.

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.

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.

Some uninvited guests look to stink up this year's Howlathon during the harvest moon. But Corazon has a smelly secret weapon to stop them.

The guard dogs haven't seen a sign of Wolf in weeks, but D.O.G. can't shake the feeling that something wicked will try to ruin the pups' Graduation Day.