Mighty Mighty Monsters in Halloween Havoc

While attempting to help Frankie Stein learn more about her freakycool scaritage, the fashionably fierce ghoulfriends travel back in time to the first day ever of Monster High! There, they meet Sparky, a skullastic teen with an obsession for creating life. But when Sparky follows the ghouls through a killer time portal to modern-day Monster High, the event results in eight of them fusing together into four creeperiffic hybrid Monsters. Now, they'll really have to work together to control their bodies in the big Bitecentennial Play and stop one of Sparky's experiments from destroying imperfectly perfect Monster High!

An intelligent 15-year-old high school student is unexpectedly transferred to a boarding school where he opens a portal of monsters from another dimension.

Lurk what's waiting for the Monster High ghouls when they bring their killer fashion to the howlways of the spooktacular Haunted High! When the ghouls of Monster High follow Spectra Vondergeist one day, they discover a creeperiffic Ghost World with an all-spirit school. But their scary-cute student bodies are hardly welcome with the very strict Principal Revenant, and she punishes Spectra with frightful detention chains that prevent her from re-joining Monster High. Now, it's up to the imperfectly perfect friends to take on ghostly forms in order to save one of their own from disappearing forever!

After Monster High’s roller skating team is defeated at the Skulltimate Roller Maze tournament, the ghouls team up to face an all-boys league, with the hope of winning back the school crest and restoring school spirit.

Monsters once lived in hiding—even from each other—because they were afraid they would be in danger if humans knew they existed. But Draculaura, the daughter of Dracula, along with her best ghoulfriends, dreamt of a school where everyone was welcome and accepted for who they are. Determined to make their dream come true, the ghouls travel the world on an epic adventure to recruit new students. But even in this amazing place, there's drama: a villainess zombie is spreading trouble rather than friendship, and every student must live with the fear that their secret will be revealed. Now the ghouls must save their school so that every monster has a place where they belong and their uniqueness is celebrated!

Susan Murphy (a.k.a. Ginormica) and the Monsters are now working with the US government as special ops. So when an alien presence is detected in Susan's hometown of Modesto, California -- right before Halloween -- the team is dispatched to investigate. Everything appears normal, right down to the jack-o-lanterns peering out from every doorstep and windowsill. But when Halloween arrives, those innocent-looking carved pumpkins reveal themselves for what they really are mutant aliens. The altered pumpkins then start to implement their fiendish plan to take over Earth. The Monsters are there to combat the mutant gourds and try to smash their wicked scheme!