It's opening day at Mr. Fungo Fungi's magnificent amusement park, Plantasy Land...and The Rootlets couldn't be more excited! With special surprises and newly sprouted rides, this is sure to be the greatest day ever! But when The Rootlets arrive at the park, they realize that something is terribly wrong...Plantasy Land is in trouble! Someone - or something - is destroying the park. Could it be The Great Zucchini - Mr. Fungi's new magician? Or could there be an even greater danger lurking beyond the park? Most of all, can The Rootlets trust their new super rootabilities to help them save their favorite place on the planet?