Oscar and Hedgehog arrive on Summer Camp Island and figure out pretty quickly that most normal summer camps don't have witch-counselors, aliens and talking trees.

Alice lures Oscar and his monster friends for a tea party, but only to turn the monsters into cute babies.

Susie holds the annual talent show that has the rest of the campers competing to win.

The Moon gets sad when Oscar loses his friendship bracelet.

The monsters get nervous when their Godmonster comes for a visit.

The campers get magical powers from the witches supply of magic ice cream.

Oscar receives a camcorder from his parents and sets out to prove to them the magic on the island is real.

A visit from Puddle the alien tests the limit of Oscar's hosting skills.

Hedgehog finds a city underneath her bed as she looks for her missing diary.

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.

Oscar's fib about his last baby tooth alerts the Molar Mole Fraud Squad, and Hedgehog jumps to his defense at a kooky mole trail.

After making Oscar's tortilla towel dreams come true, he and Hedgehog find that running a business is harder than they thought.

While Hedgehog is off "werewolfing," a deflated Oscar has a therapy session with Shark that helps him realize the magic within him.

Shortly after discovering an underwater portal, Oscar learns that his return ticket is an errand for Susie.

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?

Frustrated that he doesn’t know his magical identity, Oliver convinces Susie to tell him by means of nonviolent protest. Not wanting anyone in her house, Susie takes Oliver on a series of errands to help him figure it out.

Susie must rely on Oscar and Hedgehog in unimaginable ways after a magic trick gone wrong.

The magical creatures work together to send Mildred on a mission so they can have a special bedtime.

Susie makes contact in another realm.