A storm blocks Oscar and Hedgehog's one chance to see a comet.

Oscar, hedgehog and the other campers are excited to take a trip to the non-magical town of Heartforde.

Ramona invites Hedgehog and Oscar to participate in a special holiday ritual.

To help Ava overcome stage fright, Hedgehog takes Ava's violin into her own hands, while Oscar calls in for some reinforcements.

When Hedgehog's podcast blows up, she must decide whether to ride the wave of fame or stay true to her small but loyal fan base.

Oscar attempts to make the breakfast of his dreams.

When Oscar isn’t invited to Alexa’s birthday party, Mortimer tries to make him feel better by telling him about a similar time in his life. Ever the glowworm, Oscar sneaks back in time to help a young Mortimer overcome the sad experience.

After discovering that young Mortimer doesn’t have any friends, Oscar helps him start a new club on campus. But the monsters are forced to hide their newfound friendship from the school – and Stuart.

Mortimer and the monsters must figure out how to send Oscar back to his own time, but the only person that can help is the foe of monsters everywhere: a witch. Will they all be able to work together to get Oscar back to Hedgehog?