After the passing of Professor Ruffleberg, an adult Elizabeth returns to Evermore with two teens and their cat in tow to find some startling changes and additions in her absence. Curiosity triggers the catapult that will send them hurtling towards the core of Evermore's deepest, darkest secrets.
A group of youths are brought through to Evermore where they are faced with saving the mystical world from destruction. Meet Smokey the Mastiff and his friends too.