Amy brings her mischievous body-snatching Grandma to a party. Vic and Eva scam kids out of their candy untill they come across a villain even bigger than themselves.
When teenage supervillain Havoc stands up to the head of the League of Villains, her family is forced to change their identities and relocate to a sleepy Texas suburb. With the help of her effervescent new neighbour Hartley, Havoc - going incognito as Amy - must somehow hide her superpowers and quell her villainous nature in favour of something she and the rest of her family have fought against all their lives: being normal.