When Brandon has to go to Hannah’s house after school, she always gets to be the leader while he has to play her sidekick or some villain she’s out to destroy. Then the horrible Sunderland kids try to steal Hannah’s monster cat, Buttercup, and suddenly Brandon and Hannah have an exciting real-life mission on their hands. All the games of vampire hunter and enemy agent in the world couldn’t have prepared them for the task of saving Buttercup from the Sunderlands’ grubby clutches.