It's the start of the winter term and there's a new teacher in town at Villains Academy - the notorious dragon-rider Felix Frostbite. Class Z are in awe of him and his lessons on venomous beasts and mythical creatures, but werewolf Bram is suspicious. Soon Bram and his friends the Cereal Killers uncover Felix Frostbite's evil plan to steal all the dragons from the Wicked Woods and leave Villains Academy undefended. Have the gang learnt enough to outsmart their troublesome teacher, or will Felix Frostbite's heist go down in villain history?