Stanley the friendly troll has a wonderous green thumb and loves to make his flower garden grow. But the laws of Queen Gnorga say that all trolls must be mean, ugly and scare humans whenever possible. When Stanley grows one flower too many, the Queen sends him to live in exile in a world of concrete where he should live a life of proper trolldom--Manhattan. As luck would have it, Stanley's pod touches down in the middle of Central Park where he can at last grow his flowers in peace. Soon Stanely even makes some new friends, a young brother and sister, out for the day unknown to their parents. When the Queen hears that Stanley is quite happy with what was suppose to be a punishment, she heads off to Manhattan to make sure that Stanley, along with his new friends, ends up with the miserable existence that she promised him.