On her birthday, monster expert Clawdeen receives her mother's necklace from her father. It guides her to a hidden school called Monster High.

Clawdeen opens up to her dad and learns they have a lot in common, while Cleo seeks followers in the human world.

To discover the cause of her mother's disappearance, Clawdeen opens a portal in the catacombs and releases her brother Clawd.

After misguided efforts, Clawd learns that being a good, older brother means more than just protecting his sister.

Dracula investigates a witch rumor at Monster High, leaving Draculaura to debate whether to share her secret or get caught.

Twyla must complete a rite of passage by pursuing a Night Terror through her friends' dreams.

When Barkimedes and Howleen ask Clawdeen to show them the human world, Clawdeen battles her insecurity that humanity is boring.

Clawdeen leads the monster representatives in the Blood Moon Eclipse ceremony to bring her mom back. It's up to her, Draculaura, Frankie and the rest of the boo crew to save the Monster Ball - and the world.