When immigrants came to the new world they didn''t only bring their hopes and dreams, they also brought their MONSTERS. Years ago, early setters locked these monsters away in a secret prison deep in the woods of NEW AMSTERDAM so that they never would return to the Old World again. Those woods have become CENTRAL PARK and now the monsters have escaped! NICK, 14, finds out that he is a “legacy” to a secret society that for the last 400 years has kept these monsters in check--he and a ragtag group of kids just like him have to put the monsters back before they get out of the park and destroy the city.