Do you have a longing for Christmas to arrive? The Jonas brothers do, and that's because they can't wait to visit their grandparents and eat the wonderful cookies that Grandma bakes. But before they can enjoy them, the cookies suddenly disappear! Why? Who took them? The brothers go on a quest, accompanied by a new friend they have just met, to figure out who stole the cookies. Will they be able to solve this mystery? Discover it in "The cookie thief".