There's not much worse than having to go back to school after the holidays. Except perhaps if you return and there's graffiti all over the school! And then a flea epidemic! But at least they have the Founder's Feast to look forward to. Things are getting pretty hairy for the students of the Mammoth Academy... The heaviest snowfall in history means lots of hungry humans and soon the Academy is surrounded. How will they get out of this one?